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Analysis of distance measurement errors in CW FM sonar with MLS code modulation

Jedel A., Marszal J., Salamon R.

Hydroacoustics

2017

Vol. 20

75--84

Although used in the classic silent sonar, the CW FM sounding signal has a major flaw which is its inaccuracy in determining the distance to a target. The authors of the article have developed a concept of silent sonar using frequency modulation signals switched by pseudorandom codes, already discussed in their previous work. This article presents a detailed analysis of errors in CW FM sonar with pseudo-random sequence code modulation confronted with errors which occur in similar sonar without code modulation.