Cascaded Stochastic Resonance for Digitized Receiving of Linear Frequency Modulation Signal

Hou Cheng-guo; Luo Bo-wen; Li Di

doi:10.11999/JEIT 141496

Volume 37 Issue 12

Jan. 2016

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Hou Cheng-guo, Luo Bo-wen, Li Di. Cascaded Stochastic Resonance for Digitized Receiving of Linear Frequency Modulation Signal[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2866-2871. doi: 10.11999/JEIT 141496

Citation:

Hou Cheng-guo, Luo Bo-wen, Li Di. Cascaded Stochastic Resonance for Digitized Receiving of Linear Frequency Modulation Signal[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2866-2871. doi: 10.11999/JEIT 141496

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Cascaded Stochastic Resonance for Digitized Receiving of Linear Frequency Modulation Signal

doi: 10.11999/JEIT 141496

1.
(Information System Engineering Institute, PLA Information Engineering University, Zhengzhou 450002, China)
2.
(Troops 69260 of PLA, Urumqi 830000, China)

Funds:

The National Natural Science Foundation of China (60472064, 61201380)

Received Date: 2014-11-26
Rev Recd Date: 2015-08-25
Publish Date: 2015-12-19

Abstract

Abstract

In order to eliminate the narrowband limit of stochastic resonance system, and to complete the digitized receiving of linear frequency modulation signal with high gain, a method based on the frequency setting of received digital samples is proposed. In this method, the linear frequency modulation is directly sent to the digitized samples flitting, frequency setting process, and is converted to a single frequency signal, which fits in the subsequent cascaded stochastic resonance system. As a result, the noise energy in broadband signal is converted to signal energy. Theory and simulation results show that the algorithm can demodulate the linear frequency modulation signal, and its processing gain is higher than the existing algorithms by about 2 dB.
- Wireless communication,
- Stochastic resonance,
- Cascaded,
- Linear Frequency Modulation (LFM),
- Digitized

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References(20)

References

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