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首页> 外国专利> MODE OF DETECTION BY A PULSED-DOPPLER RADAR OF A GROUP TARGET

MODE OF DETECTION BY A PULSED-DOPPLER RADAR OF A GROUP TARGET

机译：群目标的多普勒雷达探测模式

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FIELD: the invention refers to radiolocation and may be used for determination of the fact of availability of a group target in a pulsed volume.;SUBSTANCE: the achieved technical result is increasing probability of determination of a group or a single targets taking into account a turbo-propeller effect. As the base for the mode one can use the principle of compensation of the signal if it is formed by a single target at availability only of an echo-signal from the airframe and appearance of uncompensated residues, if the echo-signal is formed by a group target or a single target taking into account the reflections as of the airframe so of the turbine blades or the propellers of a flying vehicle. For this it is necessary to execute a correlation-filter processing of the signal received by an antenna in strobes of distance and Doppler filters. The difference in complex amplitudes is found out by way of comparison of weight coefficients of complex amplitudes of signals on Doppler frequencies in each current strobe of distance. The decision about correct detection of a target is taken if differences of these coefficients prevail some threshold value.;EFFECT: increases reliability of detection of an air target.;10 dwg
机译：技术领域：本发明涉及无线电定位，并且可以用于确定脉冲体积中的组目标的可用性的事实。物质：获得的技术结果是考虑到以下因素，确定组或单个目标的可能性增加。涡轮螺旋桨效应。作为模式的基础，如果信号是由单个目标形成的，则可以使用信号补偿的原理，如果回波信号是由一个目标形成的，则仅来自机身的回波信号可用，并且出现未补偿残留物。组合目标或单个目标，并考虑到飞行器的涡轮叶片或螺旋桨从机身反射的反射。为此，有必要对距离和多普勒滤波器的选通中的天线接收的信号执行相关滤波器处理。通过比较每个距离电流选通中多普勒频率上信号的复振幅的权重系数，可以发现复振幅的差异。如果这些系数的差异超过某个阈值，则做出有关正确检测目标的决定。效果：提高对空气目标的检测可靠性; 10 dwg

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