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Design and Implement of Source Based on the m Sequence Superimposed DDS

Dong Sheng Yang

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Abstract

The need for a certain type of radar training jammer designed based m-sequence superimposed DDS source.The signal source using the FPGA m pseudo-random sequence of signals and AD9850 DDS signal is superimposed to generate complex noise signal,then this signal is applied to the the microwave oscillator source module,through the power amplifier,and finally the interference signal through an antenna radiated out,so as to achieve the requirements of real analog noise FM jamming.The tests show that the interference of the noise source with a rich spectrum,bandwidth and amplitude adjustable mounting radar.Alpha

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What this paper is about

The need for a certain type of radar training jammer designed based m-sequence superimposed DDS source.The signal source using the FPGA m pseudo-random sequence of signals and AD9850 DDS signal is superimposed to generate complex noise signal,then this signal is applied to the the microwave oscillator source module,through the power amplifier,and finally the interference signal through an antenna radiated out,so as to achieve the requirements of real analog noise FM jamming.The tests show that the interference of the noise source with a rich spectrum,bandwidth and amplitude adjustable mounting radar.Alpha

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Available abstract

The need for a certain type of radar training jammer designed based m-sequence superimposed DDS source.The signal source using the FPGA m pseudo-random sequence of signals and AD9850 DDS signal is superimposed to generate complex noise signal,then this signal is applied to the the microwave oscillator source module,through the power amplifier,and finally the interference signal through an antenna radiated out,so as to achieve the requirements of real analog noise FM jamming.The tests show that the interference of the noise source with a rich spectrum,bandwidth and amplitude adjustable mounting radar.Alpha

Key concepts: Radar, Direct-sequence spread spectrum, Electronic engineering, Computer science, SIGNAL (programming language), Amplifier, Noise (video), Jamming

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