Abstract
This paper presents the implementation of KA algorithm and Coordinate Rotation Digital Computer (CORDIC) structures for adaptive digital signal processing. Adaptive FIR filter is used in RADAR to detect weak RADAR signal. Implementation of FIR Adaptive filter requires more hardware and power consumption. Several optimization techniques are proposed to reduce hardware, power consumption and increase the speed. The optimization algorithm used in FIR Adaptive filter are Vedic mathematics, CORDIC algorithms, KA algorithm e.t.c. Among these algorithm CORDIC algorithm are widely used in RADAR application due to it's simple architecture and processor independent nature. CORDIC structures are implemented using shifter and adder. Compared to MAC unit CORDIC structures have less chip area and high speed. Further the speed and chip area of CORDIC structure is improved by combining CORDIC with KA architecture. The larger computation is splitted into smaller computation unit using KA algorithm and the computation operation is performed without multiplier using CORDIC structures, hence overall speed and chip area are improved.
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