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首页> 外文会议>Moratuwa Engineering Research Conference >Aperture-array directional sensing using 2-D beam digital filters with doppler-radar front-ends
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Aperture-array directional sensing using 2-D beam digital filters with doppler-radar front-ends

机译：具有多普勒雷达前端的2-D光束数字滤光片的光圈阵列定向检测

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A directional sensing algorithm is proposed employing doppler radar and low-complexity 2-D IIR spatially bandpass filters. The speed of the scatterer is determined by the frequency shift of the received signal following down-conversion. The downconversion is done by mixing it with the instantaneous transmitted signal. The direction of the scatterer is determined by the means of 2-D plane-wave spectral characteristics, using 2-D IIR beam filters. The proposed architecture was simulated for three scatterers at 10,° 30,° 60° from array broadside, traveling at speeds of 31 ms, 18 ms and 27 ms , respectively. A doppler radar module was used to transmit and receive reflected signals, that has a carrier frequency of 2.4 GHz. Simulations show both direction and doppler information being enhanced.
机译：提出了一种定向传感算法，采用多普勒雷达和低复杂性2-D IIR空间带通滤波器。散射体的速度由下转换后接收信号的频移确定。通过将其与瞬时传输信号混合来完成下变频。散射体的方向通过使用2-D IIR梁滤波器的2-D平面波谱特性来确定。所提出的架构以10，°30，°60°的三个散射架模拟，阵列宽边，分别以31 ms，18 ms和27ms的速度行进。多普勒雷达模块用于传输和接收反射信号，其具有2.4GHz的载波频率。仿真显示增强方向和多普勒信息。

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