| 摘要 |
PURPOSE:To decrease sampling errors when the measuring speed is low by making the pulse width of Doppler radar outputs smaller in the coefft. of proportion stepwise as the measuring speed is higher. CONSTITUTION:The output 6a of a control part 6 inputted by a converting part 7 is so arranged that, when V is below a fixed value VA, the pulses having the pulse width VT=AV are outputted and when V is larger than the fixed value VA, the pulses of the pulse width VT=B(V-VA)+AVA are outputted. Here, A is a constant consisting of an arbitrary positive number, and B is a constant consisting of an arbitrary positive figure number than that of A. Every time when one of moving objects such as automobiles is measured, the pulse having the pulse width VT is outputted from an output terminal 8. When the measuring speed V exceeds the fixed value VA, in this way, the gradient of the output pulse width VT decrease. |
