Repeater deception type GPS (Global Position System) jamming system and jamming method thereof

The invention discloses a repeater deception type jamming system and a jamming method thereof. The repeater deception type jamming system comprises reconnaissance receivers, a digital analog converter, a frequency converter, a combiner, a power amplifier, a transmission system, a jammer delayer and a jamming transmitter, wherein the frequency converter comprises an up-converter and a down converter; the combiner comprises an upper combiner and a lower combiner; eight reconnaissance receivers are provided, and each reconnaissance receiver comprises a large-diameter reflector antenna and an automatic tracking system; the transmission system adopts a wire transmission mode or a wireless transmission mode; the jammer delayer is a fixed tapped delayer with a plurality of tap positions, and a delay array is composed by a CPLD (Complex Programmable Logic Device) for each jammer delayer. The repeater deception type jamming system and the jamming method have the advantages that the jammer is small in interference emission size and light in weight, the large-diameter reflector antennas are adopted to obtain the high gain, the carrier to noise ratio of a GPS signal is improved, despreading is not needed, a sending part and a receiving part are insulated and connected by the transmission system, the insulation difficulty of the sending and the receiving is avoided, the remote transmission effect is also achieved, and a far effective jamming distance can be realized.