基于四阶矩的信号小波去噪

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI:10.1109/ISSPA.2001.949853

R. Hippenstiel, S. Mantis

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引用次数: 1

摘要

在许多应用中，无线通信发射机的定位是重要的。利用到达时差(TDOA)方法解决了移动无线通信单元的定位问题。采用去噪的时域信号增强了GSM型发射机的定位能力。在时间上对小波细节系数进行阈值处理，在尺度上采用四阶矩准则进行去噪。得到了TDOA的性能作为信噪比和均方误差的函数。

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Wavelet denoising of signals based on the fourth order moment

In many applications the localization of a wireless communications transmitter is important. Localization of a mobile wireless communication unit using the time difference of arrival (TDOA) method is addressed. The localization of a GSM type emitter is enhanced by using denoised time domain signals. Denoising is obtained by thresholding the wavelet detail coefficients in time and the application of a fourth order moment criterion in scale. The performance, as a function of SNR and mean squared error for the TDOA is obtained.

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Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)

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