Theoretical Performance Analysis for Parameter Estimation of Hybrid Modulated Signal Combining Pseudo-random Binary-phase Code and Linear Frequency Modulation

WANG Pei; ZHU Jun; TANG Bin

doi:10.11999/JEIT150523

Volume 38 Issue 2

Feb. 2016

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WANG Pei, ZHU Jun, TANG Bin. Theoretical Performance Analysis for Parameter Estimation of Hybrid Modulated Signal Combining Pseudo-random Binary-phase Code and Linear Frequency Modulation[J]. Journal of Electronics & Information Technology, 2016, 38(2): 472-477. doi: 10.11999/JEIT150523

Citation:

WANG Pei, ZHU Jun, TANG Bin. Theoretical Performance Analysis for Parameter Estimation of Hybrid Modulated Signal Combining Pseudo-random Binary-phase Code and Linear Frequency Modulation[J]. Journal of Electronics & Information Technology, 2016, 38(2): 472-477. doi: 10.11999/JEIT150523

Citation:

WANG Pei, ZHU Jun, TANG Bin. Theoretical Performance Analysis for Parameter Estimation of Hybrid Modulated Signal Combining Pseudo-random Binary-phase Code and Linear Frequency Modulation[J]. Journal of Electronics & Information Technology, 2016, 38(2): 472-477. doi: 10.11999/JEIT150523

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Theoretical Performance Analysis for Parameter Estimation of Hybrid Modulated Signal Combining Pseudo-random Binary-phase Code and Linear Frequency Modulation

doi: 10.11999/JEIT150523

Funds:

The National Natural Science Foundation of China (61172116)

Received Date: 2015-05-06
Rev Recd Date: 2015-10-09
Publish Date: 2016-02-19

Abstract

Abstract

According to the theoretical performance for parameter estimators of a signal combined Pseudo-Random Binary-phase Code (PRBC) and Linear Frequency Modulation (LFM), this paper analyzes the impact of step-by- step method on the signal estimation problem and gives the analytical expressions of Modified Cramer-Rao Lower Bound (MCRLB) for parameter estimation of PRBC-LFM signal in white Gaussian noise. Using the statistical characteristics of PRBCs, the Fishers information matrix is derived for parameters including initial frequency, chirp rate, initial phase and code width. The MCRLBs are therefore calculated. The MCRLBs are analyzed by comparison and the validity is demonstrated by numerical simulation experiments.

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References(28)

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