| 摘要 |
<p>PROBLEM TO BE SOLVED: To correct a phase shift with a temperature difference in a sum and difference wave path between an antenna and a tracking receiver. SOLUTION: A receiver includes an automatically phase correcting circuit 23 for combining a sum signal and a difference signal modulated with a clock signal to obtain a sum and difference signal and frequency conversion the sum and difference signal for phase detection to form a phase synchronizing loop and for detecting maximum and minimum values for the sum and difference signal by changing the phase of the difference signal to detect an error signal corresponding to an antenna angle with synchronous detection and correcting a phase difference between the sum signal and the difference signal in accordance with the maximum and minimum values.</p> |
