The laser echo acquiring and processing technique is a key technique in laser pulse imaging.
激光回波信号采集和处理技术是激光脉冲成像的关键技术。
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。
Steering exposure time of a camera through control electron shutter with laser echo pulse is an effective method for inhibiting background noise.
用激光回波脉冲控制电子快门来操纵摄像机的曝光时间，是抑制背景噪声的一种有效方法。
Laser echo array detection technology has the characteristics of high speed and low-power-consumption, which has been paid more and more attention.
激光回波阵列探测技术由于其低耗高速等特点，正在受到研究者日益关注。
The factors that influence the laser echo rate are analyzed in this paper and then elucidated that the application of this principle improved the echo rate greatly.
从对目标坐标测定仪中激光回波率的分析入手，阐明了应用图像取差原理极大地提高了测距系统的回波率的原因。
It is proved both in theory and from practice that the LFR times can meet the performance specifications of laser echo rate while guaranteeing the tracking precision.
理论分析和工程实际表明，在保证跟踪精度的情况下，该激光重频值将满足回波率的技术指标要求。
This article provides the signal-to-noise ratio module of the range-gating photon counting system and discusses the synchronization between the laser echo wave and the detector gate.
本文给出了距离选通光子计数系统的信噪比模型并讨论了激光回波与探测器选通门之间的同步问题。
The frame and key technological parameters of the laser remote sensing echo waveform collection system were stated.
描述了激光遥感回波波形采集实验系统主要构成以及关键技术参数。
According to laser radar echo characteristic, the difference filter and the match filter were adopted. As a result, the SNR is advanced about 1.5 times.
根据三脉冲激光雷达回波信号的特点，对信号进行差分滤波和匹配滤波处理，信噪比提高约1.5倍；
Theprinciples of the laser active reconnaissance are explained via the comparison of the echo signal. target ranging isrealized by adopting the principle the pulse laser ranging.
通过对比研究激光对漫反射大目标、小目标和“猫眼”光学镜头的回波信号，给出激光主动侦察原理：对目标的距离测量应用脉冲激光测距原理实现；
To solve the laser weak echo detection under the clutter background, A dynamic programming(DP) technique has been developed for the detection of weak targets.
为解决低信噪比下激光微弱回波的检测问题，提出了一种新的小目标检测算法。
Finally, an echo simulating model is built for the laser ranging system of a real self-propelled AA gun, and is investigated by using SCTROF. The results show that SCTROF is effective.
并以一个实际自行高炮的激光测距系统为原型，建立了其回波仿真模型，用SCTROF对此仿真模型进行了研究，结果表明，该理论是有效的。
It is introduced that a kind of large dynamic range laser pulse echo power measurement system.
介绍一种大动态范围激光回波功率线性测量系统。
In the paper the methods to process weak echo by using DSP technology based on low SNR of laser weak echo are presented. And the methods are simulated and calculated.
文章针对激光弱小回波信号的低信噪比，提出了运用数字信号处理技术对回波信号进行处理的方法，并进行了一系列仿真和计算。
The frequency response of the transducers is measured experimentally using laser ultrasound and a pulse echo reflecting method. The spectral analysis results are compared and analyzed.
由激光超声方法和自发自收脉冲反射法实验测定了所制作的换能器的频率响应，并比较了频谱分析结果。
It is difficult to theoretically calculate the laser scattering echo energy from rough surface of whole dimension target for complex environment in actual application.
由于实际环境的复杂性，理论计算大尺寸复杂目标粗糙表面的激光散射回波能量影响一直十分困难。
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。
And echo impulse waveforms had been studied when laser irradiates oblique target, circle target and step target.
并研究了激光束作用到倾斜面目标、圆形目标、阶梯型目标的回波波形。
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。
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。
Abstract: Analysis of echo photons' characteristics in laser ranging system is of great significance for laser ranging theory, system design as well as performance evaluation.
摘要：激光测距系统回波光子特性分析对激光测距理论研究、系统设计以及性能评估具有重要意义。
The influences of the optical system focal shift and the detection laser beam parameters on the echo of cat-eye optical system are studied.
研究光学系统离焦量和探测激光束参数对猫眼光学系统回波强度的影响。
Laser altimeter not only can precisely measure the target distance, but also extract characteristic information, such as inclination, roughness etc. from its echo signals. So they are applied widely.
激光测高仪不仅可以精确测量目标的距离，还能够从回波信号中提取倾斜度、粗糙度等特征信息，应用十分广泛。
The simulation of the system of single-photon detection for the space targets is carried out based on these models to get the number of laser photon echo which is simulate value.
利用所建立的模型对探测系统进行仿真，得到激光回波光子数模型仿真值。
The simulation of the system of single-photon detection for the space targets is carried out based on these models to get the number of laser photon echo which is simulate value.
利用所建立的模型对探测系统进行仿真，得到激光回波光子数模型仿真值。
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