Denoising to the pulsed laser radar return waves based on pulses accumulation and wavelet filter

Xiping Cai; Jianbo Liu; Quan Han; Wenjiang Dai

doi:10.1117/12.981752

5 December 2012 Denoising to the pulsed laser radar return waves based on pulses accumulation and wavelet filter

Xiping Cai, Jianbo Liu, Quan Han, Wenjiang Dai

Proceedings Volume 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II; 85621I (2012) https://doi.org/10.1117/12.981752
Event: Photonics Asia, 2012, Beijing, China

Abstract

In order to improve the performance of a pulsed laser radar, methods based on wavelet filter and pulses accumulation are investigated. The transmitted pulses and received return waves are modeled for the simulation of signal processing through a filter. It shows that the modeled return waves could be denoised effectively with the wavelet biro3.9 or db9 if it is on the basis of compulsory denoising. However, under the condition of high fidelity requirement for the waveform, the signal-to-noise ratio may not be increased considerably. Thus, a new filter which is based on the combination of pulses accumulation and a followed wavelet transformer is proposed and studied. The results show that it is preferab

Citation Download Citation

Xiping Cai, Jianbo Liu, Quan Han, and Wenjiang Dai "Denoising to the pulsed laser radar return waves based on pulses accumulation and wavelet filter", Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85621I (5 December 2012); https://doi.org/10.1117/12.981752

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