作用距离

脉压信号因能较好的解决作用距离和分辨能力之间的矛盾以及良好的抗干扰性能得到了广泛的应用。

The pulse compression ( PC ) radar signals are widely used because of their good range coverage and resolution , and also the nice performance of anti-jamming .

对于单标作用距离达五六公里的长基线水声定位系统，典型弱负梯度声速分布已使得声线弯曲的影响不可忽略。

With a typical weak negative gradient velocity distribution , the ray bending takes neglected influence on the long baseline acoustic positioning system , whose single hydrophone range coverage 6 kilometer .

基于MATLAB的毫米波作用距离仿真

Acting Distance Simulation of Millimeter Wave Based on MATLAB

CCD探测器搜索跟踪系统的作用距离分析

Analysis for operating distance of a searching and tracking system based on CCD detector

论文利用MATLAB软件进行程序编制，并对典型目标进行了作用距离的计算。

The paper uses MATLAB software was used to program and calculate the typical target operating distance .

天线是射频识别（RFID）系统中的一个必要部分，它的性能直接影响着系统的稳定性和作用距离。

Antenna is an essential part in the RFID system , Its performance directly affects the stability and distance of the system .

由Hudson手册给出的传统红外系统作用距离方程具有一定的局限性。

The traditional operating range equation in Hudson 's manual takes on the definite localization .

从LED的作用距离分析和发光强度分析两方面完成了LED用作标志灯发光器件可行性的理论分析。

The feasibility analyses for LED to be used as the luminous device of beacon lamp have been completed through the analyses of the operating range and the luminous intensity of LED .

IRST作用距离标定方法研究

A New Method for Demarcating Acceptance Range of IRST

论述了低截获概率（lowinterceptprobability，LIP）雷达降低反辐射导弹（anti-radiation-missile，ARM）的作用距离和诱饵使ARM失效的原理。

The theory that low intercept probability ( LIP ) radar reduces the action distance of anti-radiation-missile ( ARM ) and that ARM is disabled by the bait are discussed .

分析了RFID系统作用距离的影响因子，然后在多个不同的环境下进行天线实际效能的测试，取得了较好的实验效果。

The factors influence the RFID system effective range has been analyzed , and then effectiveness of the antenna has been experimentally verified in various environments and gets good experiment results .

它克服了常规RTK技术的缺陷，拓展了RTK定位的作用距离，其定位结果和可靠性都得到了很大的提高。

It overcomes the weaknesses of the traditional RTK technique and enlarges the distance of RTK position and improves the positioning result and reliability .

本文针对主动声纳的特点，分析了利用LMS算法的自适应线谱增强器提高主动声纳作用距离的可行性。

This paper analysised the possibility of using the adaptive line spectrum enhancer with LMS to improve the detection range of active sonar according to its characteristics .

文中用Johnson判别准则和FLIR模型计算CCD成像系统对目标的识别概率和作用距离，为系统性能评估和预测提供一定的参考。

This paper gives effection distance and identify probability using Johnson criterion and FLIR models in order to provide reference for system performance evaluation and forecast .

本文利用高级传输模型（APM）理论分析了雷达作用距离对蒸发波导高度的敏感性。

Sensitivity of the height of evaporation duct to radar coverage range is studied in this paper by APM .

扫描探测系统的NETD和作用距离方程

NETD and range equation of scanning detection systems

用NETD表达的红外作用距离方程

An 1R Operating Range Equation Expressed by NETD

结果表明，对于2000海里左右的中程大地距离（罗兰C系统的作用距离范围内），地心纬度球面上的积分长度变形达2～3km。

The result indicate that integral distance distortion on the geocentric latitudinal sphere is 2 ~ 3 km in the about 2 000 miles ( Loran C system ) .

研制的非大气窗口毫米波引信样机对某直升机作用距离≥6m；截止距离≤8m。

The measured results of the non-atmospheric window MMW fuze are developed , action distance ≥ 6m to the helicopter , close distance ≤ 8m .

通过对伪随机码连续波（PRC－cw）雷达的相关处理和检测性能的分析，提出了相应的PRC－CW雷达作用距离的计算方法。

The correction processing and the performance of detection for the Pseudo-Random Code CW ( PRC-CW ) radar are analyzed in this paper . The method which is used for evaluating the maximum range of PRC-CW radar is proposed .

作用距离是红外搜索跟踪（IRST）系统的核心指标之一，需要对它作专门的研究。

Operating range is a core specification of an IR Search and Track ( IRST ) system and a special study on the operating range should be made .

通过对武装直升机的红外辐射特性进行分析，建立了凝视型IRST系统对武装直升机的作用距离模型。

Through analyzing the radiate characteristic of the armed helicopter in theories , the operating range model of a staring IRST system for the armed helicopter was established .

介绍了三毫米波段FMCW近程雷达作用距离的计算、雷达参数选择和测距精度的分析方法。

A3mm wave band FMCW short range radar was studied , including the calculation of its detecting range , the design of its parameters and the analysis of its ranging precision .

针对寄生调幅是影响FMCW毫米波雷达作用距离的重要因素，讨论了中频滤波器在FMCW毫米波雷达系统中的作用，研究了滤波器性能与雷达作用距离的关系。

The function of IF filter in the FMCW millimeter wave radar system was discussed considering that parasitic AM was the main factor that affects the detecting range of FMCW millimeter wave radar .

在同样作用距离、深度下，中心频率20kHz是信道较好的传播频率，其振幅起伏小，自相关时间较长；

In the experimental sea area , the center frequency 20 kHz was a better transmission frequency , i. e. less amplitude fluctuation and longer autocorrelation time ;

从红外系统作用距离的普遍方程和等效噪声温差的定义出发，推导出用NETD表达的红外系统作用距离方程。

An operating range equation of IR systems expressed by NETD was deduced , starting from a general equation for operating range of IR systems and definition of the noise-equivalent temperature difference .

介绍了双模跟踪的ARBS原理及系统组成，分析了其关键技术参数：作用距离、角速率精度。

The theory and composing of ARBS based on the double model tracker were introduced . The key parameters of operating distance and angle speed precision were analysed .

该方法使雷达将可靠检测的信噪比降到7dB左右，相当于将雷达的最大作用距离提高了近40%。

By applying this method , reliable detectable SNR of the radar can be decreased to about 7 dB , which means that the maximum radar range is increased by around 40 % .

对面源目标，重新确定了温差的概念，综合考虑目标的面形尺寸、观察等级和探测概率的要求，以MRTD为基准计算作用距离。

As for extended target , the concept of temperature difference is redefined , and the formula of calculating system operating range based on MRTD is given , considering of the dimension of the target , discrimination level and detection probability .

分析了的两个表达式及其实际使用意义，结合作用距离的普遍方程建立了用NETD表示的对点源探测的作用距离方程，提高了热像仪的使用效率。

The practical usages of the two expressions of NETD were analyzed , according to the equation of operating range , a new equation of operating range was set up expressed by NETD , which improve the usage efficiency of infrared system .