Short wave transmit-receive digital signal processing circuit based on CPCI bus

A digital signal processing, short-wave technology, applied in the direction of electrical digital data processing, electrical components, transmission systems, etc., can solve the problems of low equipment integration, lack of zero intermediate frequency, etc., and achieve flexible software programmability, smooth lifting function, The effect of high transfer rate

Active Publication Date: 2014-04-30
PANDA ELECTRONICS GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The input and output of the transceiver digital signal processing circuit on the market are all intermediate frequency signals, which require an additional frequency mi...

Method used

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  • Short wave transmit-receive digital signal processing circuit based on CPCI bus
  • Short wave transmit-receive digital signal processing circuit based on CPCI bus
  • Short wave transmit-receive digital signal processing circuit based on CPCI bus

Examples

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as Figures 1 to 9 Shown is a short-wave transceiver digital signal processing circuit based on CPCI bus. The transceiver digital signal processing circuit receives the clock signal provided by the external frequency synthesis circuit, demodulates the intermediate frequency signal of the external radio frequency circuit, and passes the audio signal through zero intermediate frequency. Modulated into a short-wave radio frequency signal by technology and sent to an external radio frequency circuit for amplification, and communicates with the main control module through the CPCI bus; including 1 FPGA chip EP2SGX30, 1 DSP chip TMS320C6416, 1 up-converter AD9857, and 1 down-converter HSP50216 , 1 AD chip AD9244, 3 AD chips AD73322 for external audio sampling, FPGA serial FLASH chip EPCS16SI16N, serial communication chip MAX488, etc.; CPCI bus provides +12V, -12V...

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Abstract

The invention discloses a short wave transmit-receive digital signal processing circuit based on a CPCI bus. The short wave transmit-receive digital signal processing circuit comprises one FPGA chip and one DSP chip. The FPGA chip is in communication connection with the DSP chip, the DSP chip is provided with a CPCI bus interface, the FPGA chip is used for achieving logic control inside the circuit, up-down frequency conversion of multiple paths of signals, filtering processing and outward interface control, and a DSP is used for achieving signal processing of a transmit-receive channel, controlling a candidate device, a power amplifier and antenna regulation of a transmitter end according to a control protocol of a transmitter and controlling a preselector of a receiver according to a control protocol of the receiver. The short wave transmit-receive digital signal processing circuit based on the CPCI bus can synthesize transmit-receive functions in one circuit.

Description

technical field [0001] The invention relates to a short-wave transceiver digital signal processing circuit based on CPCI bus, which belongs to the electronic circuit design technology. Background technique [0002] The present invention is designed for the short-wave transceiver integrated equipment. In the past short-wave high-power communication equipment, the receiving and sending digital signal processing circuits are independent of each other, and the volume is large and takes up a lot of space. The input and output of the transceiver digital signal processing circuit on the market are all intermediate frequency signals, which require an additional frequency mixing module; however, there is a lack of short-wave digital signal processing modules with zero intermediate frequency on the market, resulting in low equipment integration. With the application of high-performance DSP and FPGA chips, highly integrated transceiver circuits can be realized; through mature CPCI tec...

Claims

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Application Information

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IPC IPC(8): H04B1/40G06F13/38
Inventor 俞春华吴立强
Owner PANDA ELECTRONICS GROUP
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