| 摘要 |
<p>PURPOSE:To suppress an interference wave from another radar having a slightly different pulse width and to detect only a signal of its own radar by converting a difference in the pulse width into an amplitude value being measurable with high precision and by conducting discrimination of the pulse width equivalently. CONSTITUTION:A pulse-compressed signal from an IFFT circuit 4 is inputted to a pulse width discriminator circuit 6 and also to an amplitude detecting circuit 8. In the amplitude detecting circuit 8 a peak value of an amplitude is detected and delivered to an amplitude difference determining circuit 9. A pulse-compressed signal from another IFFT circuit 4 is inputted likewise to another amplitude detecting circuit 8. In this amplitude detecting circuit 8 the peak value of the amplitude is detected likewise and delivered to the amplitude difference determining circuit 9. In the amplitude difference determining circuit 9, a difference between two inputted amplitude values is computed and a signal is passed only when the difference accords with a value for a signal of an own radar known beforehand, while it is not passed, that is, suppressed when the difference takes a value other than the above.</p> |
