| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a receiver wherein detection performance for a radio wave is improved even with such a reception signal as a power ratio of a signal to noise is small. SOLUTION: First and second detecting means 3 and 4 phase-detects the reception signal with first and second reception antennas 1 and 2. A correlation signal generating means 5 takes correlation of the output signal from the first and second detecting means to generate a correlation signal. The correlation signal is, after A/D-converted with an A/D conversion means 6, coherently integrated by coherent integration means 7-1-7-n. The integration result is detected with third detecting means 8-1-8-n, and detected for a radio wave with radio wave detecting circuits 9-1-9-n. Here, at the coherent integration means 7-1-7-n, different sampling conditions are set according to pulse width of the radio wave. Thus, such case as much reception signal component is contained in the sampled digital signal takes place for improved detection performance for radio wave.</p> |
