Chip width, carrier frequency and amplitude estimation of DS signal based on cyclic spectrum amplitude

被引：0

作者：

Huang, Chun-Lin ^{[1
]}

Liu, Zheng ^{[1
]}

Jiang, Wen-Li ^{[1
]}

Zhou, Yi-Yu ^{[1
]}

机构：

[1] Sch. of Electron. Sci. and Eng., Natl. Univ. of Defence Technol., Changsha410073, China

来源：

Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2002年 / 30卷 / 09期

关键词：

Algorithms - Computer simulation - Functions - Mathematical models - Parameter estimation - Signal to noise ratio;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

DS signal is a second order cyclostationary signal, where the information of chip width, carrier frequency and amplitude of signal is included in the amplitude of cyclic spectrum. A novel parameter estimation algorithm of DS signal, which makes use of the position and magnitude of non-zero cyclic spectral peaks to estimate the three parameters, is presented. This algorithm can implement blind estimation without a prior knowledge of pseudorandom sequence and signal parameters. This algorithm is suit for the estimation of low input signal-to-noise ratio, which can weaken or avoid the affection of stationary noise and interference by searching in non-zero cyclic frequencies. Moreover, this algorithm is more efficient by reducing multi-dimensional search to three single dimensional searches. The implement condition of the algorithm is analyzed and the performance of parameter estimation is measured by computer simulation.

引用

页码：1353 / 1356