echo ranging
英 [ˈekəʊ ˈreɪndʒɪŋ]
美 [ˈekoʊ ˈreɪndʒɪŋ]
回声测距 ，回声探鱼法
双语例句
- Combined echo ranging echo sounding
组合回声测距与测深统一的回声测距与测深 - 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。 - 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。 - CERES ( Combined Echo Ranging Echo Sounding) acoustic pulse echo system
声脉冲回声测距系统 - The principle of direct sequence spread spectrum ranging is introduced and the echo model of near field ranging is discussed.
论述了直接序列扩频测距的原理，研究了近距离测距的回波模型。 - 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。 - In this paper echo signal of linear frequency modulation ranging radar is the middle frequency signal which is from 0~ 40 MHz. The accurate algorithm of the spectrum analysis is the premise that realizes high precision location.
线性调频测距雷达回波信号是频偏0～40MHz的中频信号，精确的谱分析算法是实现精确测距的前提。 - 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。 - The article has a deep study on test control technique and echo processing methods for improving the ranging precision of 3-D laser scanner.
本文对三维激光扫描仪的测控系统技术及通过对回波信号进行处理来提高测距精度的方法进行了深入的研究。 - A detailed analysis is made on the echo's Doppler spread and range spread caused by body target spread, and on their influence on ranging.
从理论上分析了由于体目标引起的引信回波信号的多普勒展宽和距离展宽问题，以及它们对近距离扩频测距的影响。 - 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 - Echo ranging of the South Sea Lion
南海狮的回声定位 - In the experiment, based on temperature and humidity models of atmospheric turbulence, we build an indoor experimental device to simulate atmospheric turbulence field to study the influence of atmospheric turbulence on the property of laser ranging echo signal amplitude fluctuation and the dispersion of ranging data.
在实验上，基于大气湍流的温湿度模型，搭建室内模拟大气湍流场的实验装置，研究了大气湍流对激光测距回波信号幅度起伏特性和测距数据离散性的影响。 - It improves the SNR of the signal and the target distance estimation algorithm accuracy. 2 、 In the target distance algorithm, by calculating the spectral amplitude difference of the upper and lower sweep band echo signal, corrected the target distance algorithm, which increased ranging precision.
在目标测距算法中，提出了通过计算上下扫频段回波信号频谱幅度差值，修正目标距离的算法，提高了测距精度。 - The adjusting process is that CPU controls the resistance of digital potentiometer, sets different initial threshold value, thus changing the sensitivity of the receiving system can accurately identify Echo in the different Noise working environment and improve the accuracy of ranging.
其调节过程是：通过单片机控制数字电位器的阻值，设置不同的初始阈值，从而改变接收系统的灵敏度，可使测距系统在不同的噪声环境下工作，仍能准确地识别回波，提高测距的准确性。 - High speed sampling is widely used in radar echo detection, Particle physics experiment, pulsed laser ranging.
高速采样广泛应用于在雷达回波、粒子物理实验、脉冲激光测距等应用场合。