Ultra-long range near-infrared single-photon ranging radar system

Abstract

This invention discloses an ultra-long-range near-infrared single-photon ranging radar system, comprising: a near-infrared single-photon ranging radar system, a transmitting module, a receiving module, a ranging module, a signal processing module, a measurement accuracy adjustment module, a sensitivity processing module, an interference processing module, and a technology enhancement module. The output terminals of the near-infrared single-photon ranging radar system are unidirectionally connected to the input terminals of the transmitting module, receiving module, ranging module, signal processing module, measurement accuracy adjustment module, sensitivity processing module, interference processing module, and technology enhancement module. Compared with existing technologies, the beneficial effects of this invention are: by adding a signal processing module, this invention achieves signal enhancement processing of the near-infrared single-photon ranging radar system, solving the problem of poor signal quality.

Description

Technical Field

[0001] This invention relates to the field of near-infrared single-photon ranging radar technology, specifically to an ultra-long-range near-infrared single-photon ranging radar system. Background Technology

[0002] Near-infrared single-photon ranging radar is a high-precision radar system that uses a single photon for ranging. It calculates the distance by emitting near-infrared light pulses and detecting photons reflected back from the target surface, measuring the time of flight of the photons.

[0003] Near-infrared single-photon ranging radar faces several challenges during operation, including decreased measurement accuracy, sensitivity to target reflectivity and environmental factors, interference, and technical difficulties. The decrease in measurement accuracy is due to the reduced number of photons received as the ranging distance increases. Sensitivity to target reflectivity and environmental factors is inherent to single-photon radar, which is highly sensitive to these factors. Interference arises because single-photon radar is susceptible to external interference during operation, leading to inaccurate measurements. Technical challenges include atmospheric disturbances, scattering, and background noise, which hinder technological upgrades. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-long-range near-infrared single-photon ranging radar system to address the problems mentioned in the background art, such as decreased measurement accuracy, sensitivity to target reflectivity and environmental factors, interference, and technical challenges in the use of near-infrared single-photon ranging radar. The decrease in measurement accuracy is due to the reduction in the number of received photons as the ranging distance increases. The sensitivity to target reflectivity and environmental factors is due to the high sensitivity of single-photon radar to these factors. Interference occurs because single-photon radar is easily affected by external interference during use, leading to inaccurate measurements. Technical challenges include atmospheric disturbances, scattering, and background noise, which hinder technological upgrades.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultra-long-range near-infrared single-photon ranging radar system, comprising: a near-infrared single-photon ranging radar system, a transmitting module, a receiving module, a ranging module, a signal processing module, a measurement accuracy adjustment module, a sensitivity processing module, an interference processing module, and a technology enhancement module. The output terminals of the near-infrared single-photon ranging radar system are unidirectionally connected to the input terminals of the transmitting module, the receiving module, the ranging module, the signal processing module, the measurement accuracy adjustment module, the sensitivity processing module, the interference processing module, and the technology enhancement module.

[0006] The signal processing module is used to enhance the signal of the near-infrared single-photon ranging radar system.

[0007] The measurement accuracy adjustment module is used to increase the photon receiving intensity while increasing the ranging distance, thereby receiving more photons and enhancing the ranging accuracy.

[0008] The sensitive processing module is used to adjust reflectivity and photon quantity when they occur;

[0009] The interference processing module is used for wideband adjustment, and to switch frequency bands and optimize beams when interference problems occur;

[0010] The technology enhancement module is used to upgrade and enhance the internal technology of the near-infrared single-photon ranging radar system when external interference occurs.

[0011] As a preferred embodiment of the present invention, the transmitting module is used to transmit electromagnetic waves through devices such as antennas.

[0012] As a preferred embodiment of the present invention, the receiving module is used to receive the emitted electromagnetic waves through an antenna or other device.

[0013] As a preferred embodiment of the present invention, the ranging module is used to measure the electromagnetic wave distance when transmitting and receiving electromagnetic waves.

[0014] As a preferred embodiment of the present invention: the signal processing module includes a signal amplification unit and a signal processing algorithm unit, and the output terminal of the signal processing module is unidirectionally connected to the input terminal of the signal amplification unit and the signal processing algorithm unit;

[0015] The signal amplification unit is used to amplify the signal through a low-noise amplifier while reducing noise, and to reduce noise interference by filtering and preprocessing the signal before it enters the main processing unit.

[0016] The signal processing algorithm unit is used to adjust the filtering parameters through signal processing algorithms to optimize the ratio of signal to noise.

[0017] As a preferred embodiment of the present invention: the measurement accuracy adjustment module includes a signal power unit, a signal optimization unit, and an algorithm processing unit, and the output terminals of the measurement accuracy adjustment module are all unidirectionally connected to the input terminals of the signal power unit, the signal optimization unit, and the algorithm processing unit;

[0018] The signal power unit is used to reduce interference by enhancing the power of the signal source;

[0019] The signal optimization unit is used to optimize the signal using high-performance signal processing technology;

[0020] The algorithm processing unit is used to improve target recognition capabilities and the accuracy of the overall system by utilizing machine learning, pattern recognition, and multi-sensor data fusion technologies.

[0021] As a preferred embodiment of the present invention: the sensitive processing module includes a reflection adjustment unit and a photon amplification unit, and the output terminals of the sensitive processing module are unidirectionally connected to the input terminals of the reflection adjustment unit and the photon amplification unit;

[0022] The reflection adjustment unit is used to adjust the reflectivity by switching the reflection intensity of different materials;

[0023] The photon enhancement unit is used to increase the amount of photons received by enhancing the photon reception intensity.

[0024] As a preferred embodiment of the present invention: the interference processing module includes a wideband adjustment unit, a frequency band switching unit, and a beam optimization unit, and the output terminal of the interference processing module is unidirectionally connected to the input terminal of the wideband adjustment unit, the frequency band switching unit, and the beam optimization unit;

[0025] The wideband adjustment unit is used to avoid or disperse interference signals by adjusting the frequency of the distributed radar.

[0026] The frequency band switching unit is used to enhance the ability to respond to airborne jamming equipment by combining radars of different frequency bands.

[0027] The beam optimization unit is used to optimize beam strength by adjusting the azimuth and elevation angles with high resolution.

[0028] As a preferred embodiment of the present invention: the technology enhancement module includes a distance ambiguity processing unit, a noise interference adjustment unit, a high-precision ranging unit, and a spatiotemporal inverse correlation unit, and the output terminals of the technology enhancement module are all unidirectionally connected to the input terminals of the distance ambiguity processing unit, the noise interference adjustment unit, the high-precision ranging unit, and the spatiotemporal inverse correlation unit;

[0029] The distance fuzzing processing unit is used to improve distance resolution by utilizing true random coding technology and chaotic light sources;

[0030] The noise interference adjustment unit is used to improve anti-interference capability by utilizing true random coding technology and chaotic light source;

[0031] The high-precision ranging unit is used to capture photons by precisely moving the time window using a SPAD single-photon camera and time-gating technology, thereby improving ranging accuracy.

[0032] The spatiotemporal anticorrelation unit is used to set a specific gating window and filter non-target light source signals by utilizing the spatiotemporal anticorrelation of entangled photons.

[0033] Compared with existing technologies, the beneficial effects of this invention are as follows: By incorporating a signal processing module, this invention enhances the signal of the near-infrared single-photon ranging radar system, solving the problem of poor signal quality. By incorporating a measurement accuracy adjustment module, it increases the photon reception intensity while increasing the ranging distance, thereby receiving more photons and enhancing ranging accuracy, solving the problem of decreased measurement accuracy due to a decrease in the number of received photons as the ranging distance increases. By incorporating a sensitivity processing module, it adjusts reflectivity and photon quantity when interference occurs, solving the problem of sensitivity to target reflectivity and environmental factors, which is inherent to single-photon radar. By incorporating an interference processing module, it enables wideband adjustment, frequency band switching, and beam optimization when interference occurs, solving the problem of inaccurate measurements caused by the susceptibility of single-photon radar to external interference during use. By incorporating a technology enhancement module, it enables internal technology upgrades and enhancements when external interference occurs in the near-infrared single-photon ranging radar system, solving the problem of challenges such as atmospheric disturbance, scattering, and background noise affecting technology upgrades. Attached Figure Description

[0034] Figure 1 This is a system block diagram of the present invention. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1 This invention provides a technical solution: an ultra-long-range near-infrared single-photon ranging radar system, comprising: a near-infrared single-photon ranging radar system, a transmitting module, a receiving module, a ranging module, a signal processing module, a measurement accuracy adjustment module, a sensitivity processing module, an interference processing module, and a technology enhancement module. The output terminals of the near-infrared single-photon ranging radar system are unidirectionally connected to the input terminals of the transmitting module, the receiving module, the ranging module, the signal processing module, the measurement accuracy adjustment module, the sensitivity processing module, the interference processing module, and the technology enhancement module.

[0037] The signal processing module is used to enhance the signal of the near-infrared single-photon ranging radar system.

[0038] The measurement accuracy adjustment module is used to increase the photon receiving intensity while increasing the ranging distance, thereby receiving more photons and enhancing the ranging accuracy.

[0039] The sensitive processing module is used to adjust reflectivity and photon quantity when they occur;

[0040] The interference processing module is used for wideband adjustment, and to switch frequency bands and optimize beams when interference problems occur;

[0041] The technology enhancement module is used to upgrade and enhance the internal technology of the near-infrared single-photon ranging radar system when external interference occurs.

[0042] The transmitting module is used to transmit electromagnetic waves through devices such as antennas.

[0043] The receiving module is used to receive emitted electromagnetic waves through devices such as antennas.

[0044] The ranging module is used to measure the electromagnetic wave distance when transmitting and receiving electromagnetic waves.

[0045] The signal processing module includes a signal amplification unit and a signal processing algorithm unit, and the output terminals of the signal processing module are unidirectionally connected to the input terminals of the signal amplification unit and the signal processing algorithm unit.

[0046] The signal amplification unit is used to amplify the signal through a low-noise amplifier while reducing noise, and to reduce noise interference by filtering and preprocessing the signal before it enters the main processing unit.

[0047] The signal processing algorithm unit is used to adjust the filtering parameters through signal processing algorithms to optimize the ratio of signal to noise.

[0048] The measurement accuracy adjustment module includes a signal power unit, a signal optimization unit, and an algorithm processing unit. The output terminals of the measurement accuracy adjustment module are unidirectionally connected to the input terminals of the signal power unit, the signal optimization unit, and the algorithm processing unit.

[0049] The signal power unit is used to reduce interference by enhancing the power of the signal source;

[0050] The signal optimization unit is used to optimize the signal using high-performance signal processing technology;

[0051] The algorithm processing unit is used to improve target recognition capabilities and the accuracy of the overall system by utilizing machine learning, pattern recognition, and multi-sensor data fusion technologies.

[0052] The sensitive processing module includes a reflection adjustment unit and a photon amplification unit, and the output of the sensitive processing module is unidirectionally connected to the input of the reflection adjustment unit and the photon amplification unit.

[0053] The reflection adjustment unit is used to adjust the reflectivity by switching the reflection intensity of different materials;

[0054] The photon enhancement unit is used to increase the amount of photons received by enhancing the photon reception intensity.

[0055] The interference processing module includes a wideband adjustment unit, a frequency band switching unit, and a beam optimization unit. The output of the interference processing module is unidirectionally connected to the input of the wideband adjustment unit, the frequency band switching unit, and the beam optimization unit.

[0056] The wideband adjustment unit is used to avoid or disperse interference signals by adjusting the frequency of the distributed radar.

[0057] The frequency band switching unit is used to enhance the ability to respond to airborne jamming equipment by combining radars of different frequency bands.

[0058] The beam optimization unit is used to optimize beam strength by adjusting the azimuth and elevation angles with high resolution.

[0059] The technology enhancement module includes a distance ambiguity processing unit, a noise interference adjustment unit, a high-precision ranging unit, and a spatiotemporal inverse correlation unit. The output terminals of the technology enhancement module are unidirectionally connected to the input terminals of the distance ambiguity processing unit, the noise interference adjustment unit, the high-precision ranging unit, and the spatiotemporal inverse correlation unit.

[0060] The distance fuzzing processing unit is used to improve distance resolution by utilizing true random coding technology and chaotic light sources;

[0061] The noise interference adjustment unit is used to improve anti-interference capability by utilizing true random coding technology and chaotic light source;

[0062] The high-precision ranging unit is used to capture photons by precisely moving the time window using a SPAD single-photon camera and time-gating technology, thereby improving ranging accuracy.

[0063] The spatiotemporal anticorrelation unit is used to set a specific gating window and filter non-target light source signals by utilizing the spatiotemporal anticorrelation of entangled photons.

[0064] Specifically, in operation, the transmitting module transmits electromagnetic waves using antennas and other equipment, while the receiving module receives these waves using antennas and other equipment. The ranging module measures the distance between the transmitted and received electromagnetic waves. The signal processing module enhances the signal of the near-infrared single-photon ranging radar system. Specifically, the signal amplification unit within the signal processing module amplifies the signal using a low-noise amplifier while reducing noise. Furthermore, filtering and preprocessing are performed before the signal enters the main processing unit to reduce noise interference. The signal processing algorithm unit adjusts filtering parameters using signal algorithms to optimize the signal-to-noise ratio. Finally, the measurement accuracy adjustment module increases the ranging distance while improving the optical accuracy. The measurement accuracy adjustment module increases photon reception intensity, thereby receiving more photons and enhancing ranging accuracy. It utilizes a signal power unit within the measurement accuracy adjustment module to reduce interference by increasing signal source power, a signal optimization unit to optimize the signal using high-performance signal processing technology, and an algorithm processing unit to improve target recognition capabilities and overall system accuracy through machine learning, pattern recognition, and multi-sensor data fusion technology. This increases the ranging distance while simultaneously improving photon reception intensity, thus receiving more photons and enhancing ranging accuracy. The measurement accuracy adjustment module utilizes a signal power unit within the measurement accuracy adjustment module to reduce interference by increasing signal source power, a signal optimization unit to optimize the signal using high-performance signal processing technology, and an algorithm processing unit to improve target recognition capabilities and overall system accuracy through machine learning, pattern recognition, and multi-sensor data fusion technology. Machine learning, pattern recognition, and multi-sensor data fusion technologies improve target recognition capabilities and overall system accuracy. A sensitive processing module adjusts reflectivity and photon quantity upon detection of interference. A reflectivity adjustment unit within the sensitive processing module adjusts reflectivity by switching between different materials to control reflectivity. A photon enhancement unit increases photon reception intensity and quantity. An interference processing module performs broadband adjustment, switching frequency bands and optimizing beams when interference occurs. A broadband adjustment unit within the interference processing module adjusts the distributed radar frequency to evade or disperse interference signals. A frequency band switching unit enhances the ability to counter airborne jamming equipment by combining radars from different frequency bands. The beam optimization unit optimizes beam strength by adjusting the azimuth and elevation angles for high resolution. The technology enhancement module performs internal technology upgrades and enhancements when external interference occurs in the near-infrared single-photon ranging radar system. The range ambiguity processing unit within the technology enhancement module improves range resolution by utilizing true random coding technology and chaotic light sources. The noise interference adjustment unit improves anti-interference capabilities by utilizing true random coding technology and chaotic light sources. The high-precision ranging unit uses a SPAD single-photon camera and time gating technology to precisely move the time window to capture photons, improving ranging accuracy. The spatiotemporal inverse correlation unit sets a specific gating window and uses the spatiotemporal inverse correlation of entangled photons to filter out non-target light source signals.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-long-range near-infrared single-photon ranging radar system, characterized in that, include: The near-infrared single-photon ranging radar system includes a transmitting module, a receiving module, a ranging module, a signal processing module, a measurement accuracy adjustment module, a sensitivity processing module, an interference processing module, and a technology enhancement module. The output of the near-infrared single-photon ranging radar system is unidirectionally connected to the input of each of the following modules: transmitting module, receiving module, ranging module, signal processing module, measurement accuracy adjustment module, sensitivity processing module, interference processing module, and technology enhancement module. The signal processing module enhances the signal of the near-infrared single-photon ranging radar system. The measurement accuracy adjustment module increases the photon reception intensity while increasing the ranging distance, thereby receiving more photons and improving ranging accuracy. The sensitivity processing module adjusts reflectivity and photon quantity when interference occurs. The interference processing module provides broadband adjustment and switches frequency bands and optimizes the beam when interference occurs. The technology enhancement module is used to upgrade and enhance the internal technology of the near-infrared single-photon ranging radar system when external interference occurs.

2. The ultra-long-range near-infrared single-photon ranging radar system according to claim 1, characterized in that: The ranging module is used to measure the electromagnetic wave distance when transmitting and receiving electromagnetic waves.

3. The ultra-long-range near-infrared single-photon ranging radar system according to claim 2, characterized in that: The signal processing module includes a signal amplification unit and a signal processing algorithm unit. The output terminals of the signal processing module are unidirectionally connected to the input terminals of the signal amplification unit and the signal processing algorithm unit. The signal amplification unit is used to amplify the signal while reducing noise through a low-noise amplifier, and to reduce noise interference by filtering and preprocessing the signal before it enters the main processing unit. The signal processing algorithm unit is used to adjust the filtering parameters through signal algorithm processing to optimize the ratio of signal to noise.

4. The ultra-long-range near-infrared single-photon ranging radar system according to claim 3, characterized in that: The measurement accuracy adjustment module includes a signal power unit, a signal optimization unit, and an algorithm processing unit. The output terminals of the measurement accuracy adjustment module are unidirectionally connected to the input terminals of the signal power unit, signal optimization unit, and algorithm processing unit. The signal power unit is used to reduce interference by increasing the power of the signal source. The signal optimization unit is used to optimize the signal using high-performance signal processing technology. The algorithm processing unit is used to improve target recognition capability and the overall system accuracy by utilizing machine learning, pattern recognition, and multi-sensor data fusion technologies.

5. The ultra-long-range near-infrared single-photon ranging radar system according to claim 4, characterized in that: The sensitive processing module includes a reflection adjustment unit and a photon amplification unit. The output terminals of the sensitive processing module are unidirectionally connected to the input terminals of the reflection adjustment unit and the photon amplification unit. The reflection adjustment unit is used to adjust the reflectivity by switching the reflection intensity of different materials. The photon amplification unit is used to increase the amount of photons received by enhancing the photon reception intensity.

6. The ultra-long-range near-infrared single-photon ranging radar system according to claim 5, characterized in that: The interference processing module includes a wideband adjustment unit, a frequency band switching unit, and a beam optimization unit. The output of the interference processing module is unidirectionally connected to the input of each of the three units. The wideband adjustment unit is used to evade or disperse interference signals by adjusting the distributed radar frequency. The frequency band switching unit is used to enhance the ability to respond to airborne interference equipment by combining radars of different frequency bands. The beam optimization unit is used to optimize beam strength by adjusting the azimuth and elevation angles with high resolution.

7. The ultra-long-range near-infrared single-photon ranging radar system according to claim 6, characterized in that: The technology enhancement module includes a distance ambiguity processing unit, a noise interference adjustment unit, a high-precision ranging unit, and a spatiotemporal inverse correlation unit. The outputs of all these units are unidirectionally connected to their inputs. The distance ambiguity processing unit improves distance resolution by utilizing true random coding technology and chaotic light sources. The noise interference adjustment unit enhances anti-interference capabilities by utilizing true random coding technology and chaotic light sources. The high-precision ranging unit uses a SPAD single-photon camera and time-gating technology to precisely move the time window to capture photons, improving ranging accuracy. The spatiotemporal inverse correlation unit sets a specific gating window and uses the spatiotemporal inverse correlation of entangled photons to filter out non-target light source signals.

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