A kind of interference suppression method and interference suppressor
A technology for interference suppression and interference signals, applied in transmission systems, electrical components, etc., can solve problems such as unsatisfactory interference control effects, achieve enhanced discovery and tracking capabilities, and improve real-time performance
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Embodiment 1
[0064] Such as figure 1 As shown, this embodiment discloses a method for suppressing interference, including the following steps:
[0065] A. Convert the received radio frequency signal into a broadband intermediate frequency signal of the target frequency band. For the collected radio frequency signal, it is first pre-selected and amplified. The pre-selected amplification process is to pre-select and filter the frequency bands outside the required frequency range in the radio frequency signal, and select the required frequency range to amplify; for the pre-selected and amplified signal. Frequency, down-converted to the IF signal of the target frequency band, and then perform IF filtering on the IF signal based on the set target frequency band to filter out the signal outside the IF band, avoid the aliasing interference of the out-of-band signal during IF acquisition, and obtain a suitable data acquisition. Broadband intermediate frequency signal (ie baseband signal).
[006...
Embodiment 2
[0078] Such as figure 2 As shown, this embodiment discloses a method for suppressing interference, including the following steps:
[0079] A. Convert the received radio frequency signal into a broadband intermediate frequency signal of the target frequency band. For the collected radio frequency signal, it is first pre-selected and amplified. The pre-selected amplification process is to pre-select and filter the frequency bands outside the required frequency range in the radio frequency signal, and select the required frequency range to amplify; for the pre-selected and amplified signal. Frequency, down-converted to the IF signal of the target frequency band, and then perform IF filtering on the IF signal based on the set target frequency band to filter out the signal outside the IF band, avoid the aliasing interference of the out-of-band signal during IF acquisition, and obtain a suitable data acquisition. Broadband intermediate frequency signal (ie baseband signal). The t...
Embodiment 3
[0092] See attached image 3 , this embodiment discloses an interference suppressor using signal imitation, including a radio frequency receiving unit, a signal processing unit and a radio frequency transmitting unit.
[0093] The radio frequency receiving unit includes a preselection amplifying module, a frequency down conversion module and an intermediate frequency filtering module.
[0094] The preselection amplification module preselects and amplifies the collected radio frequency signal. The preselection amplification process is to preselect and filter the frequency bands outside the required frequency range in the radio frequency signal, and select the required frequency range for amplification. The down-conversion module mixes the pre-selected and amplified signal, down-converts the frequency to an intermediate frequency signal of the target frequency band, and the intermediate frequency filter module performs intermediate frequency filtering on the intermediate frequen...
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