Sidelobes Reduction Technique for Biphase Barker Codes

Sidelobes Reduction Technique for Biphase Barker Codes

© 2021 by IJETT Journal
Volume-69 Issue-6
Year of Publication : 2021
Authors : S. P. Singh, T. D. Bhatt
DOI :  10.14445/22315381/IJETT-V69I6P234

How to Cite?

S. P. Singh, T. D. Bhatt "Sidelobes Reduction Technique for Biphase Barker Codes," International Journal of Engineering Trends and Technology, vol. 69, no. 6, pp. 239-242, 2021. Crossref,

In radar and sonar communications, Barker codes are extensively used for pulse compression. High range resolution radar requires high pulse compression ratio to detect and resolve the desired target in dense clutter environment. This paper proposes a radar signal design technique in which biphase Barker codes are modulated with Discrete Frequency Coding (DFC). The proposed technique improves pulse compression ratio and also reduces the pulse compression sidelobes. The Modified Genetic Algorithm (MGA) is used for optimizing discrete frequency coded Barker codes. DFC coded Barker signals exhibit good pulse compression ratio and minimum peak sidelobe level. Complex signal structure of DFC modulated signal is very difficult to analyze by enemy Electronic Support Measures (ESM).

Autocorrelation, Barker codes, Discrete Frequency Code, High resolution, Modified Genetic Algorithm.

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