Unit Sample Sequence Unit Step signal Unit Ramp...
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CS 73 - DIGITAL SIGNAL PROCESSING
IMPORTANT FORMULAS,RESULTS
UNIT: I-SIGNALS AND SYSTEMS
Some Elementary Discrete Time Signals:
Unit Sample Sequence Unit Step signal
Unit Ramp Signal Exponential signal
Classification of Discrete-Time Signals:
Energy Signal Power Signal
Periodic Signal:
Symmetric(even) Antisymmetric (odd)
Block Diagram Representation of DT systems
Adder constant multiplier
Signal multiplier Unit Delay element
Classification of Discrete-Time Systems:
Static Dynamic
Time invariant
Time Variant:
Linear & Non-linear Systems
Linear
Non-Linear
Causal & Non-causal systems:
Causal
Non-causal
Stable & Unstable system:
Stable:
Unstable:
Analog to Digital Converter:
Analysis of DT-LTI systems:
Convolution sum:
Cross Correlation:
Auto-correlation:
Z-TRANSFORM:
UNIT:II-FREQUENCY TRANSFORMATIONS
Symmetry property:
Circular Convolution in time domain :
For real valued signals,
UNIT:III-IIR FILTER
DIRECT FORM-I
CASCADE FORM
UNIT:IV-FIR FILTER
Frequency Sampling Method:
DIRECT FORM
CASCADE FORM
Frequency Sampling structure: