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| The Study on Parameters Extraction of Pseudo Code Phase Modulation-Carry Frequency Modulation Combined Fuse Signal Based on the Adaptive Window Length WD Analysis |
| Li Ming-zi; Zhao Hui-chang |
Department of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology,
]Nanjing 210094, China |
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Abstract The theory and its implementation on the adaptive window length in the analysis of time frequency are presented in this paper. This method is used to analysis the in-pulse characteristics of pseudo-code fuse signals such as Pseudo-Code Phase Modulation (PCPM), pseudo-code phase modulation combined by Sinusoid Frequency Modulation (SFM) and pseudo-code phase modulation combined by Linear Frequency Modulation (LFM). The simulation result shows that both the characteristic of carry frequency modulation and phase changed position caused by the pseudo-code can be extracted effectively in SNR=10dB.
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Received: 23 February 2006
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2007, Vol. 29 
