General signal receiving and transmitting machine and received-transmitted signal processing method

Abstract

The invention provides a general signal receiving and transmitting machine and a received-transmitted signal processing method. The received-transmitted signal processing method comprises a signal receiving process and a signal transmitting process, wherein the signal receiving process comprises the following steps: a signal receiving module is used for carrying out once-receiving frequency-conversion processing on received signals obtained from an antenna, then converting the received signals into intermediate-frequency analog signals and transmitting the intermediate-frequency analog signals to a digital-signal processing module, and the digital-signal processing module is used for converting the intermediate-frequency analog signals into digital signal data and transmitting the digital signal data to a digital-signal demodulating circuit; the signal transmitting process comprises the following steps: the digital-signal processing module is used for converting obtained data to be transmitted from the digital processing circuit into base-band signals and transmitting the base-band signals to a signal transmitting module, and the signal transmitting module is used for carrying out once-transmitting frequency-conversion processing on the base-band signals obtained from the digital-signal processing module, converting the base-band signals into transmitting signals and outputting the transmitting signals into the antenna; and the digital-signal processing module is used for providing the same frequency-conversion working frequency settable by software for once-receiving frequency conversion of the signal receiving module and once-transmitting frequency conversion of the signal transmitting module.

Description

technical field [0001] The invention relates to a spread spectrum measurement and control technology for aerospace products, in particular to a general transceiver and a method for processing transceiver signals. Background technique [0002] In the measurement and control system, the transponder is the core communication device. The transponder belongs to the transceiver, and since the transponder is required to have distance measurement and speed measurement functions, there is a certain ratio between the receiving frequency and the transmitting frequency. With the intensive development of space missions, it is necessary to design a generalized software and hardware transceiver platform to meet the requirements of rapid delivery and reliability at the same time. [0003] There are usually two methods of generalized software and hardware solutions commonly used today. One is to customize the crystal oscillator according to the actual frequency used to form the required ope...

AI Technical Summary

Problems solved by technology

The first type needs to customize the crystal oscillator and modify the software reference operating frequency, which has a long delivery cycle and is difficult to meet the requirements of fast delivery; although the second type reduces the amount of software changes, it is difficult to compress the integration level due to the use of secondary frequency conversion , and multiple filters need to be replaced for the configuration

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