| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that an error that depends on the difference in speed detection precision is too large to be ignored in case of such a high speed target as folded many times, resulting in error in detection of a speed, since Doppler frequency resolution differs among PRFs with a radar having such a related technology as phase rotation value is calculated from pulse signals of a plurality of PRFs for detecting speed based on combination of phase rotation values of respective PRFs with the intention of accurately detecting a target speed with pulse radar.SOLUTION: Speed detection with no error can be attained by including a PRF controller 11 which controls PRF to obtain a Doppler frequency resolution of constant interval between a plurality of PRFs that are utilized, and a constant-interval Doppler frequency separator 16 that divides the PRF into reception signals for each Doppler frequency resolution of constant interval. |
