To make the linear frequency modulation continuous wave(LFMCW)radar to gain the high theoretical range accuracy and range resolution,the great insportance is attached to the limited factors.
为使线性调频连续波 (L FMCW)雷达能获得理论上的高测距精度和距离分辨力 ,在工程应用中对其性能的限制因素倍受关注 ,其中发射信道的非线性放大失真将引起 L FMCW信号功率谱产生边带杂散 ,是限制 L FMCW雷达测距精度和距离分辨力的重要因素之一。
With the limitation of small volume and low power consumption of pico-satellite,poor performance oscillator and simple circuit result in severe A/D sampling clock jitter and worsen pseudo code ranging precision.
而皮卫星体积小、功耗低特点决定只能采用较低指标的晶振源和简化的处理电路,两者带来的A/D采样时钟抖动会影响伪码跟踪环的跟踪性能,进而降低测距精度。
The ranging precision of this method is deduced.
介绍了一种离焦被动测距方法的原理,建立了该方法的测距模型,推导了该方法的测距精度,探讨了影响测距精度的主要因素,提出了有效提高测距精度的措施。
By taking the traditional responder pattern as the ranging methods,and calculating the time delays in the system to distance,the obtained ranging precision can reach decades of meters.
该方法以传统应答机模式为基础,将信号往返于两星间的传输延时转换为距离,通常精度仅能达到几十米,为将精度进一步提高,分析影响测距精度的原因,提出概率补偿算法,并得到了在不同的风险概率下,达到不同精度时卫星所要发送的测距包的理论公式,使得系统的测距精度可以提高一个数量级。
Ranging accuracy is one of the important parameters which are used to evaluate performance of laser fuze.
测距精度是衡量激光引信性能的重要指标之一。
The ranging accuracy may be better than 0.
针对高度表测高范围大,测距精度高的要求,文中给出了一种基于伪码测距高度表的实现方案。
WT5”,6BZ]:In this paper,we present the analysis the influence of the factors on the backscattered pulse power,signal to noise ratio (SNR) and ranging accuracy.
本文分析了扫描角度和航高对机载激光雷达的回波功率、信噪比和测距精度的影响。
This paper presents a new calibration method of short distance precision of total station which is called indoor baseline, and discusses its measuring steps and data processing.
提出了室内基线法 ,给出了相应的数据处理方法 ,并用实测数据进行了计算 ,结果显示全站仪在室内、短边条件下的测距精度较标称精度有很大的提高。
The reaserch to improve the precision of the laser pulse ranging in short distance
提高短距离脉冲式激光测距精度的研究
Precision improvement of undersampling theory using phasic laser rangefinder
应用欠采样原理提高相位式激光测距精度
precision of ranging for laser range finder
激光测距机测距精度
curacy of ranging for laser range finder
激光测距机测距准确度
Distance source of laser range finder and its precision analysis
激光测距仪距离模拟源技术研究与精度分析
High precision time interval measurement in pulsed laser ranging
脉冲激光测距中高精度时间间隔的测量
laser intensity direction and ranging
激光强度测向与测距
Design & Implementation of All-Digital High Precision Laser Ranging System
全数字高精度激光测距系统的设计与实现
Theoretical analysis on range accuracy of gain-modulated scannerless lidar
增益调制非扫描激光雷达测距精度的理论分析
The computational model of the method of pseudorange and SLR time comparison and its precision evaluation
伪距与激光测距法时间比对计算模型及其精度评估
Research on High-Precision Distance Measurement Technique of Laser Triangle Method with Sine-wave Light Intensity Modulation;
正弦波光强调制式激光三角法高精度测距技术研究
The Application of Laser Interferometer in Automatic Accuracy Testing of EDM
双频激光干涉仪在测距仪精度自动检测中的应用
The Research on Improving the Pointing Precision of SLR Telescope in Changchun Observatory;
长春人卫站提高卫星激光测距望远镜指向精度的研究
Research of Double Threshold Zero-crossing Time Discriminating Technology in High Precision Laser Pulsed Ranging
高精度激光脉冲测距双阈过零时刻甄别技术研究
Reasonable Accuracy of Angular Measure and Linear Measure in Electro-optical Distance Traverses;
光电测距导线中测角和量边的合理精度
ging and tracking system
激光测距和跟踪系统
LRTS (Laser Ranging and Tracking System)
激光测距与跟踪系统
LTMR (Laser Target Marker/Ranger)
激光目标识别器/测距器
