VRTS Base System Specifications - National Instruments · SPECIFICATIONS VRTS Base System ......

SPECIFICATIONS

VRTS Base SystemAutomated Radar Measurement and Obstacle-Simulation System

This document lists specifications for the Vehicle Radar Test System (VRTS). The VRTS is an automated radar measurement and obstacle-simulation system that operates within the 76 GHz to 81 GHz frequency range. You can use the VRTS to test both the hardware and software of a vehicle's radar system.

Caution Observe all instructions and cautions in the user documentation. Using the model in a manner not specified can damage the model and compromise the built-in safety protection. Return damaged models to NI for repair.

Attention Suivez toutes les instructions et respectez toutes les mises en garde de la documentation utilisateur. L'utilisation d'un modèle de toute autre façon que celle spécifiée risque de l'endommager et de compromettre la protection de sécurité intégrée. Renvoyez les modèles endommagés à NI pour réparation.

Notice When used in conjunction with a mmWave radio head, the system is intended for use indoors in a shielded chamber test environment only, as test and measurement equipment. The product is intended for professional use only.

Notice An Experimental License is required to be filed directly with the FCC if a mmWave radio head is not used inside a shielded chamber test environment. Refer to the FCC OET Experimental Licensing System website for additional guidance.

ContentsDefinitions ................................................................................................................................ 2Conditions................................................................................................................................. 2Required Equipment ................................................................................................................. 2Identifying the mmRH-3608 Module Revision........................................................................ 3Obstacle Simulation.................................................................................................................. 3Measurement Specifications..................................................................................................... 8Alignment Laser Specifications

(mmRH-3608 Configurations Only) ..................................................................................... 8Physical Characteristics ............................................................................................................ 10Power Requirements................................................................................................................. 14Environment ............................................................................................................................. 14Shock and Vibration ................................................................................................................. 15Compliance and Certifications ................................................................................................. 16Worldwide Support and Services ............................................................................................. 18

2 | ni.com | VRTS Base System Specifications

DefinitionsWarranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

The following characteristic specifications describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

• Typical specifications describe the performance met by a majority of models.

• Typical-95 specifications describe the performance met by 95% (≈2σ) of models with a 95% confidence.

• Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

Specifications are Warranted unless otherwise noted.

ConditionsSpecifications are warranted by design and under the following conditions, unless otherwise noted:

• 30 minutes of warm-up time.

• Calibration cycle maintained. National Instruments recommends that the VRTS modules be calibrated every 12 months from the time the modules are initially powered on. The specific calibration interval depends on the accuracy required by the end user's application. Accuracy of the modules is not affected by non-operation when the modules are properly stored in their original packaging or equivalent.

• Chassis fan speed set to High.

Required EquipmentThese specifications apply to systems configured as described in the VRTS Base System Getting Started Guide. All configurations consist of a combination of the following hardware.

• Variable Delay Generator for PXI (VDG)

• PXI Vector Signal Transceiver (VST)

• PXI Express controller

• PXI Express chassis

• mmWave Radio Head:

• mmRH-3608 76-81 GHz Transceiver mmWave Radio Head, bistatic captive antenna

• mmRH-3608 76-81 GHz Transceiver mmWave Radio Head, bistatic bulkhead antenna

• mmRH-3609 76-81 GHz Transceiver mmWave Radio Head, monostatic antenna with circulator

VRTS Base System Specifications | © National Instruments | 3

Identifying mmRH-3608 Module RevisionTo determine which module revision you have of the mmRH-3608 mmWave radio head, refer to the label on the bottom of your module. The part number is printed on the label. The first letter in the part number identifies the revision of the module. For example, part number 146153E-01L identifies a mmRH-3608 revision E module.

Unless noted otherwise, performance and capabilities are consistent across revisions.

Obstacle Simulation

RF ParametersFrequency range, standard 76 GHz to 77 GHz

Frequency range, configurable 76 GHz to 81 GHz1

Frequency step size 200 MHz

Instantaneous bandwidth 1 GHz

Phase Noise, 77 GHz at 100 kHz offset -85 dBc/Hz, typical

Figure 1. Measured Phase Noise, 77 GHz (Typical)

1 The mmRH-3608 revision F is calibrated to meet specifications at all twenty-one supported frequency bands. The mmRH-3608 revision E is only calibrated to meet specifications at the 76.5 GHz center frequency by default. Other frequency bands may be calibrated upon request. Calibration and performance of the 76.5 GHz band are consistent across mmRH-3608 revisions. If you do not know which mmRH-3608 module revision you have, refer to Identifying mmRH-3608 Module Revision.

‒140.00‒130.00‒120.00‒110.00‒100.00‒90.00‒80.00‒70.00‒60.00‒50.00‒40.00

0.100 k

Single Sideband Phase Noise (dBc/Hz)

1.000 k 10.000 k 100.000 k 1.000 M 10.000 M

Frequency Offset (Hz)


mmRH-3609 Monostatic Antenna Configuration with Circulator

Rx input power (after Rx antenna):

Maximum operating level for linearoperation -20 dBm

Absolute maximum (damage) -4 dBm

Rx input VSWR (after Rx antenna) 2:1, typical

Max Tx output power (before Tx antenna)-27 dBm

Tx EIRP (with included +20 dBi horn) -7 dBm, nominal

Tx OIP3 (2x Tx signals 10 MHz apart) 12 dBm

Tx/Rx isolation 25 dB, typical

Antenna type Rectangular Horn, 20 dBi, nominal WR-12, UG387/U flange

Antenna E-field orientation Vertically polarized

Antenna polarization type Linear vertical

mmRH-3608 Bistatic Bulkhead Antenna ConfigurationRx input power (after Rx antenna):




Max Tx output power (before Tx antenna) 0 dBm

Tx EIRP (with included +14 dBi horn) 8 dBm, nominal

Tx OIP3 (2x Tx signals 10 MHz apart) 20 dBm, typical


Antenna type Rectangular Horn, 14 dBi, nominal WR-12, UG387/U

Antenna E-field orientation Horizontally polarized

Antenna polarization type Linear Horizontal


mmRH-3608 Bistatic Captive Antenna Configuration Rx input power (after Rx antenna):




Max Tx output power (before Tx antenna) 14 dBm

Tx EIRP (with included +14 dBi horn) 28 dBm, nominal

Tx OIP3 (2x Tx signals 10 MHz apart) 27 dBm, typical


Antenna type Rectangular Horn, 14 dBi, nominal WR-12, UG387/U

Antenna E-field orientation Horizontally polarized

Antenna polarization type Linear Horizontal

Note Antenna orientation can be changed by rotating the mmWave radio head using the VRTS mounting bracket kit (NI part number 785766-01).

Obstacle Parameters

Figure 2. Distance between Devices and Simulated Obstacles

Number of obstacles 1 to 4 per PXI Express chassis (refer to the VRTS Base System Getting Started Guide for valid configurations)

Distance between VRTS and radar under test (L1) 0.7 m, minimum

Note Evaluate the setup distance (L1) between the VRTS and the radar under test based on their combined specifications. Parameters of the radar under test, such as

RadarUnderTest

SimulatedObstacles

L1 L2VRTS


antenna far field distance, EIRP, and antenna beam width, influence L1 and may be adjusted to achieve optimum performance.

Shortest simulated distance (L2) 2.5 m, typical; 3 m, maximum

Longest simulated distance (L2) >300 m

Distance resolution (3 m < L2 < 95m) 10 cm, nominal

Distance resolution (L2 > 95 m) 12 cm, nominal

Distance accuracy ±15 cm

Doppler range 0 to ±500 km/hour (75 kHz)

Doppler resolution 0.1 km/hour (15 Hz)

Doppler accuracy ±0.05 km/hour, typical (7.5 Hz)

Radar cross-section (RCS) Range1 105 dB (-20 dBsm to 85 dBsm), typical

RCS dynamic range2 50 dB, minimum

RCS resolution 0.25 dB, typical

Figure 3. Simulated Obstacle Distance (L1+L2) Range vs RCS, Typical, mmRH-3608 Bistatic Captive Antenna Configuration 3

1 Spurious reflection may appear, >35 dB down for target above 10 m and RCS above 25 dBsm.2 Refer to Figure 3 to observe total simulated distance range vs RCS where spurious reflections are at least

10 dB down from simulated object.

1.00

10.00

100.00

–30 –25 –20 –15 –10 –5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

Sim

ula

ted

Dis

tan

ce (L

1+L

2)

(m)

RCS (dBsm)

L1 = 3 m, (L1 + L2) min

L1 = 3 m, (L1 + L2) max

L1 = 2 m, (L1 + L2) min

L1 = 2 m, (L1 + L2) max

L1 = 1 m, (L1 + L2) min

L1 = 1 m, (L1 + L2) max

L1 = 0.7 m, (L1 + L2) min

L1 = 0.7 m, (L1 + L2) max


Figure 4. Simulated Obstacle Distance (L1+L2) Range vs RCS, Typical, mmRH-3608 Bistatic Bulkhead Antenna Configuration1

3 Conditions: +30 dBm TxEIRP from sensor under test.1 Conditions: +30 dBm TxEIRP from sensor under test.

1.00

10.00

100.00

–30 –25 –20 –15 –10 –5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

RCS (dBsm)

Sim

ulat

ed D

ista

nce

(L1+

L2)

(m)

L1 = 3 m, (L1 + L2) min

L1 = 3 m, (L1 + L2) max

L1 = 2 m, (L1 + L2) min

L1 = 2 m, (L1 + L2) max

L1 = 1 m, (L1 + L2) min

L1 = 1 m, (L1 + L2) max

L1 = 0.7 m, (L1 + L2) min

L1 = 0.7 m, (L1 + L2) max


Figure 5. Simulated Obstacle Distance (L1+L2) Range vs RCS, Typical, mmRH-3609 Monostatic Antenna Configuration with Circulator1

Obstacle update rate <5 ms per obstacle, typical

Measurement Specifications

Note Requires that the NI-RFmx SpecAn driver be installed on the system. Refer to the NI-VRTS Readme to determine which version of NI-RFmx SpecAn to use.

Modulated Signal ParametersOccupied bandwidth 1 GHz instantaneous bandwidth maximum

EIRP power measurement range (with manual entry of setup distance) -30 dBm to +30 dBm

Note The VRTS system has multiple ways of performing real time over-the-air power measurements. For fast measurements, you could use the internal (calibrated) VST, which can perform power measurements concurrently with obstacle generation. For more accurate and traceable power measurements, an AUX Rx IF port is provided for power monitoring with a conventional (< 6 GHz) power meter. Note that

1.00

10.00

100.00

–30 –25 –20 –15–10 –5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85

RCS (dBsm)

Sim

ula

ted

Dis

tan

ce (L

1+L

2)

(m)

L1 = 3 m, (L1 + L2) min

L1 = 3 m, (L1 + L2) max

L1 = 2 m, (L1 + L2) min

L1 = 2 m, (L1 + L2) max

L1 = 1 m, (L1 + L2) min

L1 = 1 m, (L1 + L2) max

L1 = 0.7 m, (L1 + L2) min

L1 = 0.7 m, (L1 + L2) max


speed and accuracy are dependent on the power sensor used. The accuracy specifications for two different methods are listed below.

EIRP power measurement repeatability(using the internal VST) ± 2 dB (CW signal ± 10 MHz F° and

+25 °C ± 10 °C)

EIRP power measurement repeatability(using a power meter at the Rx IF Aux Outport of the mmRH-3608) .................................. ± 0.5 dB + power-meter uncertainty

(CW signal ±10 MHz F° and +25 °C ± 10 °C)

Alignment Laser Specifications (mmRH-3608 Configurations Only)

Caution This is a Class 2 (Class II) laser product and has visible laser radiation up to 1 mW emitting from the laser aperture. This product is for use as an alignment laser only, per CFR Title 21, Chapter I, Subchapter J, Part 1040.11(b). The product is safe for momentary exposures but can be hazardous for deliberate staring into the beam. DO NOT STARE INTO THE BEAM. Class 2 lasers can cause photochemical and thermal retinal injury to the eye, as well as skin reactions and burns with longer than momentary exposure. Adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Dazzle, flash-blindness and afterimages may be caused by a beam from a Class 2 laser product, particularly under low ambient light conditions. This may have indirect general safety implications resulting from temporary disturbance of vision or from startle reactions. Such visual disturbances could be of particular concern connected with performing safety-critical operations such as working with machines or at height, with high voltages, or driving. Users are instructed not to stare into the beam, and should perform active protective reactions by moving the head or closing the eyes and to avoid continued intentional intrabeam viewing.

Attention Ce produit est un laser de classe 2 (classe II) qui émet, par son ouverture, un rayonnement laser visible atteignant 1 mW. Ce produit doit être utilisé uniquement comme laser d'alignement, conformément au Titre 21 du CFR, chapitre I, sous-chapitre J, partie 1040.11 (b). Le produit est sans danger en cas d'exposition momentanée mais peut être dangereux lorsqu'on fixe délibérément le faisceau. NE PAS REGARDER FIXEMENT LE FAISCEAU. Les lasers de classe 2 peuvent provoquer des lésions rétiniennes photochimiques et thermiques ainsi que des réactions cutanées et des brûlures en cas d'exposition trop longue. Les ajustements ou l'exécution de procédures autres que celles spécifiées ici peuvent entraîner une exposition à des rayonnements dangereux. Le faisceau d'un produit laser de classe 2 peut entraîner l'éblouissement, un bref aveuglement et des images rémanentes, en particulier dans des conditions de faible luminosité ambiante. Cela peut avoir des implications générales indirectes sur la sécurité résultant de perturbations temporaires de la vision ou de réactions de surprise. De telles perturbations visuelles


peuvent être particulièrement préoccupantes lors de la réalisation d'opérations critiques pour la sécurité telles que le travail sur des machines ou en hauteur, le travail avec des tensions élevées ou lors de la conduite. Les utilisateurs ont pour consigne de ne pas regarder fixement le faisceau et doivent réagir de façon active pour se protéger, en bougeant la tête ou en fermant les yeux, et éviter de continuer à regarder intentionnellement le faisceau.

Laser class 2

Wavelength 650 nm to 660 nm

Beam divergence 1.2 mrad

Duration Continuous

Maximum power 1 mW

Laser Labeling

Physical Characteristics

Note These specifications apply to the required VRTS components. For information about other VRTS components, visit ni.com/manuals.

To clean the VRTS, wipe it with a dry towel.

LASER RADIATIONDO NOT STARE INTO BEAMCLASS 2 LASER PRODUCT

IEC 60825-1:2007MAX OUTPUT: 1 mW, WAVELENGTH: 650-660 nm

DURATION: CONTINUOUSCOMPLIES WITH 21 CFR 1040.10 AND 1040.11 EXCEPT FOR

DEVIATIONS PURSUANT TO LASER NOTICE NO. 50, DATED JUNE 24, 2007

RX

NI mmRH-360876– 81 GHz Bistatic mmWave Transceiver

TX

LASER RADIATIONDO NOT STARE INTO BEAMCLASS 2 LASER PRODUCT

IEC 60825-1:2007MAX OUTPUT: 1 mW, WAVELENGTH: 650-660 nm

DURATION: CONTINUOUSCOMPLIES WITH 21 CFR 1040.10 AND 1040.11 EXCEPT FOR

DEVIATIONS PURSUANT TO LASER NOTICE NO. 50, DATED JUNE 24, 2007

1


WeightmmRH-3608 2.8 kg (6.2 lb)

mmRH-3609 3.0 kg (6.6 lb)

NI-5692 (VDG) 1.1 kg (2.5 lb)

mmWave Radio Head Transceiver Panel Connectors10 MHz REF IN SMA-F

10 MHz REF OUT SMA-F

TX RF COUPLER OUT SMA-F

TX IF IN SMA-F

RX IF COUPLER OUT SMA-F

RX IF OUT SMA-F

12 V 3.0 A MAX Two-pin custom

DIO 0 Mini HDMI

DIO 1 Mini HDMI


mmWave Radio Head Mechanical Dimensions

Figure 6. mmWave Radio Head, Top View

Figure 7. mmWave Radio Head, Length

2 X

208

.1 m

m (

8.19

in.)

2 X

3.3

mm

(0.

13 in

.)

2 X

13.

5 m

m (

0.53

in.)

2 X 183.0 mm (7.20 in.)

46.9 mm (1.85 in.)2 X 46.9 mm (1.85 in.)

2 X 28.6 mm (1.13 in.)

2 X 13.5 mm (0.53 in.)0.0 mm (0.0 in.)

2 X 45.1 mm(1.78 in.)

2 X 151.4 mm(5.96 in.)

8 X M4 X 0.7, 5.1 mm MAX

0.0

mm

(0.

0 in

.)

2 X

57.

8 m

m (

2.28

in.)

6 X

8.9

mm

(0.

35 in

.)

2 X

164

.1 m

m (

6.46

in.)

2 X

175

.0 m

m (

6.89

in.)

2 X

193

.3 m

m (

7.61

in.)

203.00 mm (7.99 in.)


Figure 8. mmWave Radio Head, Rear View

Figure 9. mmRH-3609, Front View

Figure 10. mmRH-3609, Side View

0.0

mm

(0.

0 in

.)

0.0 mm (0.0 in.)

53.3 mm (2.10 in.)

17.1 mm (0.67 in.)

6 X 33.9 mm (1.33 in.)

48.5

mm

(1.

91 in

.)

31.4

mm

(1.

24 in

.)

43.9

mm

(1.

73 in

.)

68.0

mm

(2.

68 in

.)

80.5

mm

(3.

17 in

.)

118.

6 m

m (

4.67

in.)

131.

1 m

m (

5.16

in.)

76.7

mm

(3.

02 in

.)

95.7

mm

(3.

77 in

.)

2 X 22.0 mm(0.87 in.)

30.40 mm(1.197 in.)

16.20 mm(0.638 in.)

20.00 mm(0.787 in.)

98.20 mm(3.866 in.)

20.40 mm(0.803 in.)


Figure 11. mmRH-3608 Bistatic Captive Antenna, Front View

Figure 12. mmRH-3608 Bistatic Captive Antenna, Side View

Figure 13. mmRH-3608 Bistatic Bulkhead Antenna, Front View

131.

25 m

m (

5.16

7 in

.)

98.2

3 m

m (

3.86

7 in

.)

65.2

1 m

m (

2.56

7 in

.)

0.00

mm

(0.

00 in

.)

0.00 mm(0.00 in.)

3 X 30.35 mm(1.194 in.)

2 X 7.37 mm(0.290 in.)

2 X8.89 mm(0.350 in.)

2 X 8.54 mm(0.336 in.)

2 X 7.37 mm(0.290 in.)

131.

25 m

m (

5.16

7 in

.)

0.00

mm

(0.

00 in

.)

3 X 30.34 mm(1.194 in.)

0.00 mm(0.00 in.)

2 X 8.89 mm(0.350 in.)

30.69 mm(1.208 in.)

0.00 mm(0.00 in.)

98.2

3 m

m (

3.86

7 in

.)

65.2

1 m

m (

2.56

7 in

.)


Figure 14. mmRH-3608 Bistatic Bulkhead Antenna, Side View

Power Requirements

DC Input (mmWave Radio Head)DC power 12 V, 3 A, maximum

EnvironmentMaximum altitude 2,000 m (800 mbar)

(at 25 °C ambient temperature)

Measurement category1 I

Caution Do not connect the system to signals or use for measurements within Measurement Categories II, III, or IV.

Note Measurement Categories CAT I and CAT O (Other) are equivalent. These test and measurement circuits are not intended for direct connection to the MAINs building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Pollution degree 2

For indoor use only.

Operating EnvironmentAmbient temperature range 0 °C to 45 °C

Relative humidity range 10% to 90%, noncondensing

1 Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

2 X 14.55 mm(0.573 in.)


Storage EnvironmentAmbient temperature range -40 °C to 71 °C

Relative humidity range 10% to 90%, noncondensing

Shock and VibrationShock

Operating 30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27 and IEC 60068-2-64. Meets MIL-PRF-28800F Class 2 limits)

Non-operating 50 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27 and IEC 60068-2-64. Meets MIL-PRF-28800F Class 2 limits)

Random vibration

Operating 5 Hz to 500 Hz, 0.3 grms (Tested in accordance with IEC 60068-2-64.)

Non-operating 5 Hz to 500 Hz, 2.4 grms (Tested in accordance with IEC 60068-2-64.)

Compliance and Certifications

Safety StandardsThis product meets the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:

• IEC 61010-1, EN 61010-1

• UL 61010-1, CSA C22.2 No. 61010-1

Note For UL and other safety certifications, refer to the product label or theOnline Product Certification section.

Electromagnetic CompatibilityThis product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

• EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity

• EN 55011 (CISPR 11): Group 1, Class A emissions

• AS/NZS CISPR 11: Group 1, Class A emissions


• FCC 47 CFR Part 15B: Class A emissions

• ICES-003: Class A emissions

Note In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in heavy-industrial locations.

Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.

Note For EMC declarations and certifications, and additional information, refer to the Online Product Certification section.

CE ComplianceThis product meets the essential requirements of applicable European Directives as follows:

• 2014/35/EU; Low-Voltage Directive (safety)

• 2014/30/EU; Electromagnetic Compatibility Directive (EMC)

Online Product CertificationRefer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

Environmental ManagementNI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Minimize Our Environmental Impact web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

http://www.ni.com/certification


http://www.ni.com/environment

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377227E-01 Jan20

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Visit ni.com/services for NI Factory Installation Services, repairs, extended warranty, and other services.

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A Declaration of Conformity (DoC) is our claim of compliance with the Council of the European Communities using the manufacturer’s declaration of conformity. This system affords the user protection for electromagnetic compatibility (EMC) and product safety. You can obtain the DoC for your product by visiting ni.com/certification. If your product supports calibration, you can obtain the calibration certificate for your product at ni.com/calibration.

NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. NI also has offices located around the world. For telephone support in the United States, create your service request at ni.com/support or dial 1 866 ASK MYNI (275 6964). For telephone support outside the United States, visit the Worldwide Offices section of ni.com/niglobal to access the branch office websites, which provide up-to-date contact information, support phone numbers, email addresses, and current events.

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