CN-116418356-B - System and method for processing radio frequency signals

CN116418356BCN 116418356 BCN116418356 BCN 116418356BCN-116418356-B

Abstract

The application relates to the technical field of radio frequency signal processing, in particular to a processing system and a processing method for radio frequency signals, wherein the processing system for radio frequency signals comprises a signal receiving module, a signal processing module, a switch processing module and a signal output module, and the signal receiving module is used for receiving radio frequency signals; the signal processing module is used for carrying out sectional filtering processing on the radio frequency signals to obtain corresponding filtering signals, the switch processing module is used for comparing the radio frequency signals with preset radio frequency, generating and sending out first control signals when the radio frequency signals are larger than the preset radio frequency, generating and sending out second control signals when the radio frequency signals are smaller than the preset radio frequency, and the intermediate frequency signal output module is used for receiving intermediate frequency signals. The application has the effect of comparing the frequency of the received radio frequency signal with the preset radio frequency through the switch processing module, and further controlling different channel switches.

Inventors

WU WUJUN
DU PEI
YUAN XIAOHUI
CHEN HAOFEI
HU SHURONG

Assignees

陕西中信机电有限公司

Dates

Publication Date: 20260508
Application Date: 20230321

Claims (10)

1. A processing system for radio frequency signals comprises a channel module and a local oscillator module connected with the channel module in a network mode, and is characterized in that the channel module comprises a signal receiving module (10), a switch processing module (20) connected with the signal receiving module (10), a signal processing module (30) connected with the switch processing module (20) in a network mode and a signal output module (40), The signal receiving module (10) is used for receiving radio frequency signals and transmitting the received radio frequency signals to the switch processing module (20); The switch processing module (20) is used for receiving the radio frequency signal, comparing the radio frequency signal with a preset radio frequency, and generating and sending a first control signal for controlling the closing of the first switch to output a high-frequency radio frequency signal if the radio frequency signal is larger than the preset radio frequency, and generating and sending a second control signal for controlling the closing of the second switch to output a low-frequency radio frequency signal if the radio frequency signal is smaller than the preset radio frequency; The signal processing module (30) is configured to receive the corresponding high-frequency radio-frequency signal or low-frequency radio-frequency signal, perform a segmented filtering process on the corresponding high-frequency radio-frequency signal or low-frequency radio-frequency signal to obtain a corresponding filtered signal, process the filtered signal to obtain a corresponding intermediate-frequency signal, and send the intermediate-frequency signal to the intermediate-frequency signal output module (40); The intermediate frequency signal output module (40) is used for receiving the intermediate frequency signal and outputting the intermediate frequency signal.
2. A processing system for radio frequency signals according to claim 1, characterized in that the signal processing module (30) comprises a signal acquisition unit (31), a mode selection unit (32) and a mixing control unit (33), the signal acquisition unit (31) is connected to the switch processing module (20) to receive the radio frequency signals of different bandwidths and to transmit the radio frequency signals to the mode selection unit (32), the mode selection unit (32) is configured to perform a piecewise filtering process on the radio frequency signals to acquire corresponding filtered signals and to transmit the filtered signals to the mixing control unit (33), and the mixing control unit (33) is configured to receive the filtered signals and to perform a down-conversion process on the filtered signals to output intermediate frequency signals.
3. A processing system for radio frequency signals according to claim 2, characterized in that the mode selection unit (32) comprises a selection control subunit (321) and a gain control subunit (322), the selection control subunit (321) being arranged to receive the radio frequency signals and to process the radio frequency signals in different modes for outputting the filtered signals, wherein the different modes comprise a low noise mode, a normal mode and a low distortion mode, the gain control subunit (322) being arranged to receive the modes selected by the selection control subunit (321) for selecting the respective gain values.
4. A processing system for radio frequency signals according to claim 2, wherein the local oscillator module comprises a local oscillator control unit (50), the local oscillator control unit (50) being configured to input a local oscillator signal to the mixing control unit (33), the mixing control unit (33) being further configured to receive the local oscillator signal and the filtered signal and to down-convert the local oscillator signal and the filtered signal to output the intermediate frequency signal.
5. A processing system for radio frequency signals according to claim 4, characterized in that the local oscillator control unit (50) comprises a processing subunit (51) and an output subunit (52), the processing subunit (51) being configured to receive a preset signal and to synthesize the preset signal to output a corresponding processing signal, and the output subunit (52) being configured to receive the processing signal and to correspondingly process the processing signal based on a power divider to output a local oscillator signal.
6. A processing system for radio frequency signals according to claim 2, characterized in that the switch processing module (20) comprises a data processing unit (21) and a switch control unit (22), the data processing unit (21) being arranged to receive the radio frequency signals and to compare the radio frequency signals with a preset radio frequency and to output corresponding control signals to the switch control unit (22), the control signals comprising a first control signal and a second control signal, Wherein, when the data processing unit (21) outputs a first control signal, the switch control unit (22) controls the closing of the first switch, and when the data processing unit (21) outputs a second control signal, the switch control unit (22) controls the closing of the second switch.
7. A processing system for radio frequency signals according to claim 6, characterized in that the switch control unit (22) comprises a first switch subunit (221) and a second switch subunit (222), the first switch subunit (221) being configured to control the signal processing module (30) to receive the radio frequency signals with different bandwidths, the second switch subunit (222) being configured to control the mode selection unit (32) to perform different modes of processing on the received filtered signals.
8. A processing method for radio frequency signals, characterized in that it is implemented on the basis of a processing system for radio frequency signals according to any one of claims 1-7, comprising the following steps: The signal receiving module (10) receives radio frequency signals and transmits the received radio frequency signals to the signal processing module (30); The switch processing module (20) receives the radio frequency signal, compares the radio frequency signal with a preset radio frequency, and generates and sends out a first control signal for controlling the closing of the first switch to output a high-frequency radio frequency signal if the radio frequency signal is larger than the preset radio frequency, and generates and sends out a second control signal for controlling the closing of the second switch to output a low-frequency radio frequency signal if the radio frequency signal is smaller than the preset radio frequency; The signal processing module (30) receives the corresponding high-frequency radio-frequency signal or low-frequency radio-frequency signal, performs segmented filtering processing on the corresponding high-frequency radio-frequency signal or low-frequency radio-frequency signal to obtain a corresponding filtering signal, processes the filtering signal to obtain a corresponding intermediate-frequency signal, and transmits the intermediate-frequency signal to the intermediate-frequency signal output module (40); the intermediate frequency signal output module (40) receives the intermediate frequency signal and outputs the intermediate frequency signal.
9. A processing method for radio frequency signals according to claim 8, characterized in that said signal receiving module (10) receives radio frequency signals comprising the steps of: acquiring an original radio frequency signal based on an antenna; Acquiring a corresponding processing signal according to the original radio frequency signal; and acquiring a corresponding radio frequency signal according to the processing signal.
10. A processing method for a radio frequency signal according to claim 8, wherein said radio frequency signal data further comprises a radio frequency pattern comprising, after said generating and issuing a first control signal for controlling the closing of a first switch, the steps of: acquiring a corresponding radio frequency mode according to the radio frequency; screening out corresponding processing modes from preset modes according to the radio frequency modes, wherein the preset modes comprise a low noise mode, a low distortion mode and a conventional mode; if the corresponding processing mode of the radio frequency mode is a low noise mode, generating and sending out a first mode signal; if the corresponding processing mode of the radio frequency mode is a low-distortion mode, generating and sending out a second mode signal; And if the corresponding processing mode of the radio frequency mode is a normal mode, generating and sending out a third mode signal.

Description

System and method for processing radio frequency signals Technical Field The present application relates to the field of radio frequency signal processing, and in particular, to a system and a method for processing radio frequency signals. Background The radio frequency signal is modulated and has a radio wave with a certain transmitting frequency, but the frequency of the chip for baseband processing is not high enough at present, so that the radio frequency signal with high frequency for transmission is reduced to an intermediate frequency signal, and then the corresponding intermediate frequency signal is correspondingly processed, so that the required frequency spectrum component can be obtained. In the related technology, a microwave signal of 10G-15G is input by an antenna, and a 1G-6 GHz output signal is obtained after the microwave signal is processed by a radio frequency signal processing module. However, in the related art, the frequency range of the received microwave signal is smaller, and the received rf signal in some ultra wideband frequency ranges cannot be received, so that the processing of the ultra wideband rf signal is missed, and thus some information is missed. Disclosure of Invention In order to obtain a radio frequency signal with a longer frequency, the application provides a processing system and a processing method for the radio frequency signal. In a first aspect, the present application provides a processing system for radio frequency signals, which adopts the following technical scheme: a processing system for radio frequency signals comprises a channel module and a local oscillator module connected with the channel module in a network manner, wherein the channel module comprises a signal receiving module, a switch processing module connected with the signal receiving module, a signal processing module connected with the switch processing module in a network manner and a signal output module, The signal receiving module is used for receiving radio frequency signals and transmitting the received radio frequency signals to the switch processing module; The switch processing module is used for receiving the radio frequency signal, comparing the radio frequency signal with a preset radio frequency, and generating and sending a first control signal for controlling the closing of the first switch to output a high-frequency radio frequency signal if the radio frequency signal is larger than the preset radio frequency, and generating and sending a second control signal for controlling the closing of the second switch to output a low-frequency radio frequency signal if the radio frequency signal is smaller than the preset radio frequency; the signal processing module is used for receiving the corresponding high-frequency radio frequency signal or low-frequency radio frequency signal, further carrying out sectional filtering processing on the high-frequency radio frequency signal or low-frequency radio frequency signal to obtain a corresponding filtering signal, processing the filtering signal to obtain a corresponding intermediate frequency signal, and transmitting the intermediate frequency signal to the intermediate frequency signal output module; the intermediate frequency signal output module is used for receiving the intermediate frequency signal and outputting the intermediate frequency signal. In some embodiments, the signal processing module includes a signal acquisition unit, a mode selection unit and a mixing control unit, where the signal acquisition unit is connected to the switch processing module to receive the radio frequency signals with different bandwidths and transmit the radio frequency signals to the mode selection unit, the mode selection unit is configured to perform a piecewise filtering process on the radio frequency signals to acquire corresponding filtered signals and transmit the filtered signals to the mixing control unit, and the mixing control unit is configured to receive the filtered signals and perform a down-conversion process on the filtered signals to output intermediate frequency signals. In some of these embodiments, the mode selection unit includes a selection control subunit for receiving the radio frequency signal and performing different mode processing on the radio frequency signal to output the filtered signal, where the different modes include a low noise mode, a normal mode, and a low distortion mode, and a gain control subunit for receiving the mode selected by the selection control subunit to select a corresponding gain value. In some embodiments, the local oscillation module includes a local oscillation control unit, where the local oscillation control unit is configured to input a local oscillation signal to the mixing control unit, and the mixing control unit is further configured to receive the local oscillation signal and the filtered signal, and perform a down-conversion process on the local oscillation signal and the filtered sign