Blind separation interference resistant base band processing device for communication system
A communication system and processing device technology, applied in the transmission system, communication between multiple stations, transmission noise suppression, etc., to achieve good communication quality and stability, improve stability and communication quality, and effective anti-interference processing effects
Active Publication Date: 2012-12-05
SOUTH CHINA UNIV OF TECH
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However, most of the noise is unknown, and in many cases the size of the noise is also unknown. Sometimes the power of the noise will far exceed the power of the real communication model, because how to deal with the interference from the unknown interference source, It plays an important role in improving the stability, reliability and communication quality of the communication system
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[0019] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0020] The device of the present invention is attached Figure 1 Communication system architecture, Complete the blind separation process in the baseband module, so as to realize anti-jamming processing. in reference figure 1, The interfered communication signal uses two relatively uncorrelated antennas to receive the aliased signal, and performs AD conversion and despreading on the received signal through the radio frequency module, and performs blind separation processing on the signal before demodulation to realize the separation of the interference signal and the communication signal. separate.
[0021] The device of the present invention is as Figure 2 Show: this speech enhancement device based on blind signal separation mainly consists of processor 2, memory unit (comprising data memory 5 and FL, ASH memory 6), sequence control unit 8, power ...
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The invention provides a device for processing blind separation anti-interference basebands of communication systems, which mainly comprises a processor, an information receiving unit, an information output unit and an interfere output and a power supply unit, wherein the information receiving unit is mainly two ways of band-interference input-demodulating down-converted signals. Clock signals and control signals are provided to each unit by a sequential and control unit, the collected two ways of independent band-interference signals are inputted into the processor, and then the pre-processing and the blind separation are carried out by the processer, and separated interference noise and signals are transmitted to the output unit by the processor. The device further can be used in a common communication machine, in particular to be adopted in the fields of radars, military affairs and the like, which has no requirements to the signal-to-noise ratio and can keep the good communicationquality under the strong interference.
Description
technical field [0001] The invention relates to an interference device in a communication system, in particular to a communication system baseband processing device which adopts a blind signal separation method to realize anti-interference processing. Background technique [0002] In the communication system, it is often easy to introduce interference signals during the communication process, and such interference signals are often random, unknown, and uncontrollable for the communication system. However, it directly affects the communication quality. Traditional anti-jamming technology usually assumes what kind of noise the source of interference is, and has certain requirements for signal-to-noise ratio, so that effective anti-jamming processing can be carried out. However, most of the noise is unknown, and in many cases the size of the noise is also unknown. Sometimes the power of the noise will far exceed the power of the real communication model, because how to deal wi...
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IPC IPC(8): H04B15/00H04B7/26
Inventor 谢胜利杨祖元吴宗泽周智恒张克新孟凡飞
Owner SOUTH CHINA UNIV OF TECH