1、

Design and analysis of the lower electronic noise circuit with a ultrasonic pulse echo ranging system

低噪声回波测距系统的电路设计与系统分析

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2、
3、

Combined echo ranging echo sounding

组合回声测距与测深统一的回声测距与测深

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4、

Maximum entropy spectral estimation and LMS adaptive algorithm were proposed to extract the reflection echo signal of laser ranging system.

提出了最大熵谱估计和LMS自适应算法提取激光测距系统的反射回波信号。

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5、

Simluation results show that the maximum entropy spectral estimation and LMS adaptive algorithm can extract echo signal of laser ranging system effectively from background noises.

仿真分析表明,最大熵谱估计和LMS自适应算法相结合可以有效地从背景噪声中提取有用的激光反射回波信号。

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6、

As an important feature, the characteristics of echo stretching affects SNR of received laser echo signal and ranging accuracy.

脉冲展宽特性是激光回波的重要特性,其影响到回波接收信噪比和测距精度。

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7、

Using simulation echo wave and accurate time delay circuit to measure ranging ability, using CCD to grasp laser facular to measure divergence of laser pulse, the digitized methods are realized.

采用模拟回波和精密延时电路检测照射能力、用CCD采集激光光斑测试激光束散角,实现了整机性能的数字化检测。

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