| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve the sensitivity of a transmission and reception module of a pulse radar by completely eliminating unnecessary digital noises caused by the higher harmonics of a clock from a received RF signal. <P>SOLUTION: In the transmission and reception module for the pulse radar, an oscillator for generating an internal clock is operated only in transmission. In reception, control is performed by an internal clock control signal given from the outside so that the operation of the oscillator is stopped. Also, in reception, the operation of an external clock is stopped and generation of the higher harmonics from the internal clock and the external clock in reception are suppressed. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
