Quantum Radar and Its Method for Realizing Target Detection
A quantum radar and target technology, applied in measurement devices, radio wave measurement systems, radio wave reflection/re-radiation and other directions, which can solve the problems of weak real-time performance, weak imaging ability, and large electromagnetic leakage.
Active Publication Date: 2019-09-06
谭梓昂
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Problems solved by technology
[0002] At present, the conventional system radar mainly has the following disadvantages: first, the transmission power is large (tens of kilowatts), and the electromagnetic leakage is large; second, the anti-stealth ability is poor;
Therefore, the further improvement of conventional system radar sensitivity has reached the limit
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[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0041] Such as figure 1 As shown, the quantum radar of the present invention includes: a laser source, an attenuator, an EPR source, a signal transmitting mirror, an optical fiber self-loop, a single-photon detector, and an imaging output module.
[0042] The laser light source used in this embodiment requires strong coherence, for example, infrared light (1.5 μm or 0.85 μm, etc.).
[0043] The used EPR source is used to convert the two-photon or multi-photon signal into a two-photon entanglement or multi-photon entanglement signal, and one of the entangled photon signals is output by progressive scanning in the range of the emitting mirror. The mobile signal transmitter mirror searches for space targets.
[0044] Such as figure 2 Shown is the fiber self-loop, the fiber self-loop forms a closed loop by the fiber, and its performan...
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The invention relates to a quantum radar and a target detection implementing method thereof. The quantum radar comprises an EPR source, a signal transmitting lens, a photon storage device, a single photon detector and an imaging output module, wherein the EPR source is used for generating entangled photon signals; the signal transmitting lens is used for carrying out in-lens scanning on transmitting photons in the entangled photon signals and emitting the photons to a target; the photon storage device is used for storing local photons in the entangled photon signals, and when the transmittingphotons meet the target, the local photons are emitted out from the photon storage device; the single photon detector is used for detecting the local photons emitted out form the photon storage device, and acquiring output voltage signals according to the emitted-out local photons; and the imaging output module is used for calculating the position of the target according to the voltage signals andimaging. Entangled-state photons are emitted to the target, the information of the target can be acquired and imaging is implemented without measurement of echo, and thus, the performance of the radar is greatly improved.
Description
technical field [0001] The invention relates to an optoelectronic device for space target detection, in particular to a quantum radar and a method for realizing target detection. Background technique [0002] At present, the conventional system radar mainly has the following disadvantages: first, high transmission power (tens of kilowatts), large electromagnetic leakage; second, poor anti-stealth ability; third, weak imaging ability; fourth, complex signal processing and weak real-time performance. [0003] At present, the development direction of the conventional system radar is mainly to improve the overall performance of the radar by improving the sensitivity of the receiver. Conventional system radars use electromagnetic waves to detect targets, and need to measure the echo signal to determine the target. Since electromagnetic waves are affected by the superposition of thermal noise, electronic equipment is also affected by thermal noise. Therefore, the sensitivity of co...
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IPC IPC(8): G01S13/89G01S13/06
Inventor 谭宏
Owner 谭梓昂