射频干扰检测方法及装置、射频干扰抑制方法及装置

• Format: Patent
• Language: Chinese
• Published: 24.02.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

本公开涉及一种射频干扰检测方法和装置、射频干扰抑制方法和装置，所述检测方法包括：获得SAR回波信号对应的方位时域距离频域的第一频谱；对所述第一频谱进行平滑处理，得到第二频谱；滤除所述第二频谱的带外频谱得到第三频谱；对所述第三频谱进行射频干扰检测，得到射频干扰信息。本公开实施例可实现准确检测到干扰频带并滤波干扰，且能够重建缺失数据、保证了抑制射频干扰的效果。 The invention relates to a radio frequency interference detection method and device, a radio frequency interference suppression method and device. The detection method comprises the steps of acquiringa first frequency spectrum of an azimuth time domain distance frequency domain corresponding to an SAR echo signal; smoothing the first frequency spectrum to obtain a second frequency spectrum; filtering the out-of-band frequency spectrum of the second frequency spectrum to obtain a third frequency spectrum; and performing radio frequency interference detection on the third frequency spectrum toobtain radio frequency interference information. According to the embodiment of the invention, an interference frequency band can be accurately detected, interference is filtered, missing data can bereconstructed, and the effect of suppressing ra