Fully-polarized radar decoy device with novel structure and method

Abstract

The invention provides a complete-polarization radar decoy device with a novel structure and a method. The device comprises a first transmit-receive antenna, a second transmit-receive antenna, a first function module group, a second function module group, a radar signal parameter extraction unit and a control unit. The polarization mode of a signal transmitted by the first transceiving antenna and the polarization mode of a signal transmitted by the second transceiving antenna are mutually orthogonal; each of the first function module group and the second function module group comprises a transceiving switch, a low-noise amplifier, a power divider, a lower frequency converter, a multi-parameter modulation unit, an upper frequency converter and a field amplifier which are sequentially connected to form a complete channel; the transceiving switch in the first function module group is connected with the first transceiving antenna, and the transceiving switch in the second function module group is connected with the second transceiving antenna. The power dividers in the two function module groups are jointly connected with a radar signal parameter extraction unit, the radar signal parameter extraction unit is connected with a control unit, and the control unit is respectively connected with the multi-parameter modulation units in the two function module groups.

Description

technical field

[0001] The invention relates to the technical field of radar countermeasures, in particular to a fully polarized radar decoy device and method with a novel structure. Background technique

[0002] With the increasingly fierce modern electronic countermeasures, deceptive electronic jamming methods such as active false targets with high cost performance have become the focus of people's general attention. Since active false targets can autonomously generate jamming signals that are highly similar to real target echoes in terms of energy, waveform, and phase modulation, it is difficult for radar systems to identify them in airspace, time domain, and frequency domain (or Doppler domain). . However, the use of polarization information has effectively improved the ability of radar target detection and identification and anti-jamming. With the development of polarization measurement technology and radar polarization information processing theory, radar with full po...

Examples

Embodiment 1

[0038] like figure 1 As shown, the embodiment of the present invention provides a fully polarized radar decoy device (referred to as the decoy device) with a novel structure, including: a first transceiver antenna, a second transceiver antenna, a first functional module group, a second functional module group, a radar A signal parameter extraction unit and a control unit; the polarization mode of the signal transmitted by the first transceiver antenna and the polarization mode of the signal transmitted by the second transceiver antenna are mutually orthogonal;

[0039] Both the first functional module group and the second functional module group include a transceiver switch, a low-noise amplifier, a power divider, a down-converter, a multi-parameter modulation unit, an up-converter and a field amplifier connected in sequence to form a complete channel;

[0040] The transceiver switch in the first functional module group is connected to the first transceiver antenna, and the tr...

Embodiment 2

[0049] Corresponding to the above-mentioned fully polarized radar decoy device with a novel structure, an embodiment of the present invention also provides a radar signal jamming method, including:

[0050] Adjust the transceiver switch to make the device in the signal receiving mode, and then detect radar signals through the first transceiver antenna and the second transceiver antenna;

[0051] The radar signals detected by the first transceiver antenna are respectively processed by the low-noise amplifier and the power divider in the corresponding first functional module group, and are distributed to obtain the first output signal and the second output signal; The received radar signals are respectively processed by the low-noise amplifier and the power divider in the corresponding second functional module group, and distributed to obtain the third output signal and the fourth output signal;

[0052] The first output signal is processed by the down-converter in the first fun...

technical field

[0001] The invention relates to the technical field of radar countermeasures, in particular to a fully polarized radar decoy device and method with a novel structure. Background technique

[0002] With the increasingly fierce modern electronic countermeasures, deceptive electronic jamming methods such as active false targets with high cost performance have become the focus of people's general attention. Since active false targets can autonomously generate jamming signals that are highly similar to real target echoes in terms of energy, waveform, and phase modulation, it is difficult for radar systems to identify them in airspace, time domain, and frequency domain (or Doppler domain). . However, the use of polarization information has effectively improved the ability of radar target detection and identification and anti-jamming. With the development of polarization measurement technology and radar polarization information processing theory, radar with full po...

Examples

Embodiment 1

[0038] like figure 1 As shown, the embodiment of the present invention provides a fully polarized radar decoy device (referred to as the decoy device) with a novel structure, including: a first transceiver antenna, a second transceiver antenna, a first functional module group, a second functional module group, a radar A signal parameter extraction unit and a control unit; the polarization mode of the signal transmitted by the first transceiver antenna and the polarization mode of the signal transmitted by the second transceiver antenna are mutually orthogonal;

[0039] Both the first functional module group and the second functional module group include a transceiver switch, a low-noise amplifier, a power divider, a down-converter, a multi-parameter modulation unit, an up-converter and a field amplifier connected in sequence to form a complete channel;

[0040] The transceiver switch in the first functional module group is connected to the first transceiver antenna, and the tr...

Embodiment 2

[0049] Corresponding to the above-mentioned fully polarized radar decoy device with a novel structure, an embodiment of the present invention also provides a radar signal jamming method, including:

[0050] Adjust the transceiver switch to make the device in the signal receiving mode, and then detect radar signals through the first transceiver antenna and the second transceiver antenna;

[0051] The radar signals detected by the first transceiver antenna are respectively processed by the low-noise amplifier and the power divider in the corresponding first functional module group, and are distributed to obtain the first output signal and the second output signal; The received radar signals are respectively processed by the low-noise amplifier and the power divider in the corresponding second functional module group, and distributed to obtain the third output signal and the fourth output signal;

[0052] The first output signal is processed by the down-converter in the first fun...

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