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Volume 16 Issue 2
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2008  >  16(2): 034-37
CHEN Yong-sen, CHEN Hang, WANG Xin-hong, YAN Qing. Design of Ultra-Wideband Signals Based on Chebyshev Approximation Method for Torpedo Homing System[J]. Journal of Unmanned Undersea Systems, 2008, 16(2): 034-37. doi: 10.11993/j.issn.1673-1948.2008.02.009
Citation: CHEN Yong-sen, CHEN Hang, WANG Xin-hong, YAN Qing. Design of Ultra-Wideband Signals Based on Chebyshev Approximation Method for Torpedo Homing System[J]. Journal of Unmanned Undersea Systems, 2008, 16(2): 034-37. doi: 10.11993/j.issn.1673-1948.2008.02.009
shu

Design of Ultra-Wideband Signals Based on Chebyshev Approximation Method for Torpedo Homing System

doi: 10.11993/j.issn.1673-1948.2008.02.009
  • 1.

    College of Marine Engineering,Northwestern Polytechnical University,Xi′an 710072,China

  • 2.

    National Key Lab of Underwater Information Processing and Control, Northwestern Polytechnical University, Xi′an 710072,China

  • Received Date: 2007-07-12
  • Rev Recd Date: 2007-10-10
  • Publish Date: 2008-04-30
    Abstract
  • As a new developmental direction for torpedo homing system, very short impulse and ultra-wideband signal has the advantages such as more information and good anti-stealth effect. An ultra-wideband waveform design method for torpedo homing system is proposed. First, a finite impulse respond(FIR) band pass filter is designed based on Chebyshev approximation method, and then the windowed impulse response is used to adjust energy distribution of signal. Using equal spacing frequency points, this method has low calculating complexity, also it allows designers to specify signal duration, bandwidth and attenuation. Simulation result indicates that the signal has great energy attenuation outside band limit, and the energy distribute equally in band limit. Compared with narrowband signal the ultra-wideband signal imposes satisfactory suppression on reverberation.

     

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    • References(8)
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