Polyphase Coded signal Design for Netted Radar Systems

Abstract

A Modified Simulated Annealing Algorithm (MSAA) is proposed as a statistical technique to design polyphase coded signals for Orthogonal Netted Radar Systems (ONRS) which have good autocorrelation and cross correlation properties. This algorithm is a combination of simulated annealing and Hamming Scan algorithms. Some of the synthesized results are presented, and their properties are better than other known in the literature. The effect of Doppler frequency shift on the performance of these signals is investigated and found "thumbtack ambiguity function". The synthesized polyphase sequence sets are promising for practical application ONRS / multiple radar.The convergence rate of the algorithm is also good.

Optimizing polyphase sequences for orthogonal netted radar systems

“…Liu et al proposed an algorithm to design and optimize orthogonal signals which is based on a statistical genetic algorithm (GA) [5]. Singh et al investigated the similar topic and proposed a modified SA algorithm which is a combination of the SA and Hamming scan algorithm to design polyphase coded sequences and discrete frequencycoded signals for ONRS [6][7][8][9]. Brodzik et al described a new construction of polyphase sequences with optimal correlation properties based on the finite Zak transform [10].…”