| 摘要 |
<p>In a continuous wave radar apparatus with intermediate frequency formation, a portion of the transmission waves which are emitted by the transmission oscillator (1) to reach the reception mixer (4) while passing through the circulator (5) is mixed to the mixing effected in the reception mixer (4), which mixing is comprised of the echo signals and the heterodyne waves (coming from the local oscillator (2)), thereby allowing to reduce the manufacturing cost and improve the utilisation of the transmission energy.</p> |
