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在这个速度敏感装置中,用一个发射喇叭照射地面,至少用一对分开的天线来接收从地面反射回来的能量,由此来测量发射喇叭所产生的经反射的雷达点源方向图通过两个接收天线之间的距离所需要的时间,而时间的测量是通过求和各个天线相连的正交检波器和输出通道与差输出通道等功率处的频率来获得到的。这个时间正比于飞机的速度。另外,也显示了如何配置三个天线使得能测量两个方向的速度。
In this speed-sensitive device, a transmitting horn is used to illuminate the ground and at least one pair of separate antennas are used to receive the energy reflected from the ground, thereby measuring the direction of the reflected radar point source produced by the transmitting horn through two The time required to receive the distance between the antennas, which is measured by the frequency at the power of the quadrature detector and the output channels and the difference output channels, which are connected to the respective antennas. This time is proportional to the speed of the plane. It also shows how to configure the three antennas so that the speed in both directions can be measured.