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Method for generating radio frequency signal of parallel structure

A radio frequency signal and signal technology, applied in the field of signal generation, can solve the problem of high clock frequency, achieve the effects of high flexibility, improve joint measurement accuracy, and strong equipment adaptability

Active Publication Date: 2018-01-19
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology

[0003] Combining the principle of radio frequency signal generation, the present invention proposes a radio frequency signal generation method with a parallel structure, so as to solve the problem of high clock frequency directly generated by communication and navigation radio frequency signals, and provide a solution for software radio

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  • Method for generating radio frequency signal of parallel structure
  • Method for generating radio frequency signal of parallel structure
  • Method for generating radio frequency signal of parallel structure

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0036] The present invention provides a parallel structure radio frequency signal generation method, the method comprising:

[0037] Determine the clock frequency fis and the sampling frequency 8×fis according to the center carrier frequency fc of the radio frequency signal to be generated and the signal bilateral bandwidth BW, in the embodiment of the present invention, the clock frequency fis is according to BW / 2<|8×fis-fc |<4×fis to determine.

[0038] The carrier frequency fif is calculated according to the center carrier frequency fc and the clock frequency fis. In the embodiment of the present invention, the carrier frequency fif is calculated according to fif=fc-8*fis.

[0039] Determine the form of the baseband data data according to the carrier frequency fif, in an embodiment of the present invention, the form of the baseband data data...

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Abstract

The invention relates to a method for generating a radio frequency signal of a parallel structure, and the method comprises the steps: determining a clock frequency fis and a sampling frequency 8*fisaccording to the central carrier frequency fc of a to-be-generated radio frequency signal and a signal bilateral bandwidth BW; calculating the carrier frequency fif according to the central carrier frequency fc and the clock frequency fis; determining the form of baseband data according to the carrier frequency fif; generating 8 parallel carrier signals according to the carrier frequency fif and the clock frequency fis; generating four pieces of parallel data according to the 8 parallel carrier signals and the baseband data; carrying out the data conversion of the four pieces of parallel data,and generating a radio frequency signal.

Description

technical field [0001] The invention relates to signal generation technology, in particular to a parallel structure radio frequency signal generation method. Background technique [0002] RF transmit signals are often in the L-band or higher and can be generated using high slew rate DACs (digital-to-analog conversion) and image signals in the high Nyquist region. However, the sampling rate of this method is too high, and it is often difficult to support direct generation on the timing of the FPGA side. Contents of the invention [0003] Combining the principle of radio frequency signal generation, the present invention proposes a radio frequency signal generation method with a parallel structure, so as to solve the problem of too high clock frequency for direct generation of communication and navigation radio frequency signals, and provide a solution for software radio. [0004] According to an embodiment of the present invention, a parallel structure radio frequency sign...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B1/04
Inventor 王瑛严涛刘潇李毅松梁银刘文山
Owner XIAN INSTITUE OF SPACE RADIO TECH
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