Wide-Band High Resolution Homing Sonar Echo Detect Based On Spread Spectrum Technology

Author

Jianyun, Chen ; Xiaopen, Zhong ; XuZhe, Fen ; JianWei, Yan

Author_Institution

Nat. Univ. of Defense Technol., Changsha

fYear

2007

Abstract

This paper propose and analyze high resolution auto-navigation sonar system based on DS/SS technology. Compare to traditional auto-navigation sonar system, the system have big time and frequency range , can provide high distance and speed resolution and good anti-interference capability. Paper discuss the principle of waveform design and enduce ambiguity function of DS/SS modulation signals. In the case of high-speed target, paper provided and proved a algorithm using CZT which can estimate Doppler frequency offset and target speed in very low SNR condition.

Keywords

Doppler effect; signal resolution; sonar detection; spread spectrum communication; DS/SS modulation signals; Doppler frequency offset; anti-interference capability; auto-navigation sonar system; high-speed target; homing sonar echo detection; spread spectrum technology; wide-band high resolution; Frequency estimation; Pulse modulation; Signal processing; Signal resolution; Sonar detection; Sonar measurements; Spread spectrum communication; Spread spectrum radar; Velocity measurement; Wideband; Ambiguity Function; CZT Algorithm; Direct sequence spread spectrum; WideBand Homing sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-1136-8

Electronic_ISBN

978-1-4244-1136-8

Type

conf

DOI

10.1109/ICEMI.2007.4350518

Filename

4350518