A composite telemetry method

Abstract

The application provides a composite telemetry method, comprising the following steps: step one, target telemetry link establishment is carried out by using a first telemetry device, after the link establishment is completed, spatial target position solution is realized, a first position range is obtained, a value is sent to a microwave measuring device in real time, and a turntable is controlled to keep stable tracking on the target and keep the telemetry link stable; step two, a second telemetry device automatically captures and tracks the target in the first position range, and a second position range is obtained, wherein the area of the second position range is smaller than that of the first position range; step three, on the basis of target capture and tracking, the second telemetry device realizes imaging on the tracked target and the background through double-waveband of common optical path design, and records target infrared radiation characteristic data.

Description

Technical Field

[0001] This invention belongs to the field of target infrared radiation characteristic measurement, and specifically relates to a composite telemetry method. Background Technology

[0002] Telemetry is an effective method for obtaining relevant parameters of a measured object from a location far from the object itself.

[0003] Currently, the most commonly used telemetry method is microwave telemetry. As an active remote sensing technology and tool, microwave telemetry is widely used and can be used to detect and locate targets with strong echo scattering at long distances.

[0004] However, this telemetry method often leads to target search failures and low measurement accuracy. Furthermore, microwave telemetry lacks visualization capabilities, which will significantly impact the conduct of subsequent missions. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a composite telemetry method, which includes at least the following steps:

[0006] Step 1: Establish a telemetry link for the target using the first telemetry device. After the link is established, calculate the spatial target position to obtain the first position range. Send the value to the microwave measurement device in real time, and control the turntable to maintain stable tracking of the target and keep the telemetry link stable.

[0007] Step 2: The second telemetry device automatically acquires and tracks the target within the first location range to obtain a second location range, wherein the area of ​​the second location range is smaller than that of the first location range;

[0008] Step 3: Based on target acquisition and tracking, the second telemetry device uses a dual-band design with a common optical path to image the tracked target and the background, and records the target's infrared radiation characteristics data.

[0009] In one possible implementation, the second telemetry device automatically acquires and tracks the target within the first location range, including:

[0010] Guided by the target spatial location information provided by the first telemetry device, the second telemetry device automatically captures and tracks the target.

[0011] In one possible implementation, the second telemetry device automatically acquires and tracks the target within the first location range, including:

[0012] The second telemetry device performs a single-device autonomous search to capture and track the designated target.

[0013] In one possible implementation, the first device is a microwave telemetry device, and the second telemetry device is an optoelectronic telemetry device.

[0014] In one possible implementation, establishing the target telemetry link using the first telemetry device includes:

[0015] Within its operating range, the telemetry equipment can perform manual coarse alignment, autonomously search for and establish a telemetry link with the telemetry target according to system requirements.

[0016] In one possible implementation, the second telemetry device includes two optical aperture observers, a Φ200 main aperture and a Φ120 secondary aperture, wherein the main aperture adopts a dual-band common optical path design for short-wave and mid-wave infrared for measuring the infrared radiation characteristics of the target, and the secondary aperture adopts a continuously variable infrared detection component for target acquisition and tracking.

[0017] In one possible implementation, step three further includes: collecting the target light radiation and performing a primary image of the target; separating the primary image of the target by wavelength and simultaneously deflecting the optical path; performing short-wavelength band imaging on the primary real image and imaging it onto the focal plane of the short-wave camera to detect the target's image in the short-wavelength band; and performing mid-wavelength band imaging on the primary real image and imaging it onto the focal plane of the mid-wave camera to detect the target's image in the mid-wavelength band.

[0018] On the other hand, this application also provides a composite telemetry device, which includes a first telemetry device and a second telemetry device;

[0019] The first telemetry equipment includes: an antenna feeder subsystem, a servo subsystem, a telemetry demodulation subsystem, a positioning, orientation and GPS timing subsystem, a calibration subsystem and a power supply subsystem;

[0020] The second telemetry device includes: a main aperture target characteristic detection and measurement component, a secondary aperture target acquisition and tracking component, a two-dimensional turntable, a tracking control assembly, a human-machine interface, a turntable power supply box, and supporting system cables.

[0021] In one possible implementation, the two-dimensional turntable includes: a two-dimensional mechanism, servo control, and stabilization control; the tracking control assembly includes: a tracking processor and a target characteristic measurement assembly.

[0022] Compared with existing technologies, this invention offers at least the following advantages: The composite telemetry method proposed in this invention differs from existing single telemetry methods by utilizing optoelectronic equipment to compensate for the low accuracy and lack of visualization in microwave measurements, thereby achieving precise target search and measurement. This invention first establishes a target telemetry link using microwave telemetry equipment, and then uses optoelectronic telemetry equipment for target acquisition and tracking. Finally, based on target acquisition and tracking, the optoelectronic telemetry equipment uses a shared optical path design for shortwave and medium-wave dual-band imaging of the tracked target and background. This invention not only achieves the functions of ordinary telemetry methods but also provides visualization of the tracked target for subsequent tasks. This invention overcomes the shortcomings of traditional telemetry, such as poor real-time performance, complex system composition, and low task scheduling efficiency, effectively improving the reliability of telemetry data.

[0023] The flexible satellite mounting method with the solar array in its retracted state provided by this invention effectively simplifies the solar array mounting process, improves the efficiency of solar array mounting, saves solar array mounting time, and reduces solar array mounting costs. Attached Figure Description

[0024] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of a composite telemetry method provided in an exemplary embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the principle of a microwave telemetry device for a composite telemetry method provided in an exemplary embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the principle of an optoelectronic telemetry device for a composite telemetry method provided in an exemplary embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the main aperture camera of an optoelectronic telemetry device for a composite telemetry method provided in an exemplary embodiment of this application. Detailed Implementation

[0029] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to... Figures 1 to 4This embodiment provides a composite telemetry method, which includes the following steps:

[0031] Step 1: Establish a target telemetry link using microwave telemetry equipment. After the link is established, calculate the spatial target position and send the value to the microwave measurement equipment in real time. At the same time, control the turntable to maintain stable tracking of the target and keep the telemetry link stable.

[0032] Step 2: Within the effective range, the photoelectric telemetry equipment is capable of automatically acquiring and tracking the target under the guidance of the target spatial location information provided by the microwave telemetry equipment; in addition, the photoelectric telemetry equipment is also capable of autonomous search by a single device to complete the acquisition and tracking of a specified target.

[0033] Step 3: Based on target acquisition and tracking, the photoelectric telemetry equipment uses a common optical path design to image the tracked target and background in both short-wave and medium-wave bands, and records the target's infrared radiation characteristics data.

[0034] It should be noted that the microwave telemetry device and the optoelectronic telemetry device mentioned above utilize the different characteristics of the two wavebands and combine the advantages of each. Therefore, the two devices mentioned above are merely illustrative examples. This application is not limited to the two wavebands mentioned above, and other wavebands that can achieve the same effect should also fall within the protection scope of this application.

[0035] In one embodiment of this application, the telemetry equipment in step one comprises: an antenna feeder subsystem, a servo subsystem, a telemetry demodulation subsystem, a positioning, orientation, and GPS timing subsystem, a calibration subsystem, and a power supply subsystem. The method for establishing a target telemetry link using microwave telemetry equipment is as follows: within the effective range, the telemetry equipment performs manual coarse alignment, autonomously searches for and establishes a telemetry link with the telemetry target according to system requirements.

[0036] In one embodiment of this application, the telemetry system in step one works as follows: Figure 2 As shown, the S-band telemetry ground station uses the GPS carrier phase measurement technology of the two direction-finding receivers in the direction-finding assembly to complete the orientation calculation and give the north deviation result. At the same time, it can calculate the positioning result and complete the site positioning and north-finding functions when the telemetry vehicle station performs field missions.

[0037] The parabolic antenna acquires the S-band telemetry signal from the missile-borne telemetry transmitter according to the set operating mode and enters self-tracking mode. The left and right rotary signals, including the telemetry signal and tracking angle error signal, are amplified by two LNA amplifiers, two AGCA link amplifiers, and fed to the RF coupling network via high-frequency cables. The left and right rotary signals are then split and fed into three S-band downconverters. The RF coupling network also has output power supply and eight 1KC reference output functions. The RF signal is mixed, filtered, and amplified in the three S-band downconverters, outputting a 70MHz intermediate frequency signal, which is sent to two telemetry baseband units and one telemetry terminal. The left and right rotary intermediate frequency signals are simultaneously sent to a signal adapter board for real-time monitoring.

[0038] The broadband receiving and processing platform of the telemetry baseband assembly and telemetry baseband terminal receives the 70MHz intermediate frequency signal from the L / R rotary downconverter, and completes intermediate frequency filtering and amplification, gain control, carrier acquisition and tracking, diversity synthesis, data demodulation, angle error demodulation, or angle error envelope generation. The telemetry baseband recovers the video signal, completes code synchronization, frame synchronization, and subframe synchronization processing, and receives the IRIG-B000 serial time code from the time coder, inserts it into the frame header of each frame to form a telemetry data packet, completes data storage under the management of the telemetry software, and can send the telemetry data out through the network (target characteristic measurement equipment) according to instructions; at the same time, it outputs the demodulated angle error information to the angle division system for tracking the measured target.

[0039] In one embodiment of this application, as Figure 3 As shown, the photoelectric telemetry system in step two comprises: a main aperture target characteristic detection and measurement component, a secondary aperture target acquisition and tracking component, a two-dimensional turntable (two-dimensional mechanism, servo control, stabilization control), a tracking control assembly (tracking processor, target characteristic measurement assembly), a human-machine interface, a turntable power supply box, and supporting system cables.

[0040] In step two, the photoelectric telemetry equipment is equipped with two optical aperture observers: a Φ200 main aperture and a Φ120 secondary aperture. The main aperture employs a dual-band common optical path design for short-wave and mid-wave infrared, primarily used for measuring the infrared radiation characteristics of the target. The secondary aperture uses a continuously variable magnification infrared detection component, mainly used for target acquisition and tracking.

[0041] The working principle of the photoelectric remote sensing equipment in step two is as follows: Figure 3As shown, the photoelectric telemetry system acquires information through a target characteristic measurement camera. The information processing module mainly processes, stores, and transmits the target images detected by the shortwave and medium-wave cameras. The support structure mainly integrates the various components of the target characteristic measurement camera and provides an external mounting interface for the camera. The calibration blackbody mainly collimates a fixed amount of blackbody radiation and projects it onto the main optics of the target characteristic measurement camera; it mainly consists of a mid-temperature cavity blackbody, calibration optics, a temperature control module, and a structural component.

[0042] In one embodiment of this application, the target characteristic measurement camera in step three can perform short-wave and mid-wave spectral imaging detection of the target, such as... Figure 4 As shown, its structure mainly consists of main optics, beam splitting optics, shortwave back optics, shortwave camera, midwave back optics, midwave camera, information processing module, and support mechanism.

[0043] The main optics primarily collects the target's light radiation and performs a primary image of the target. The beam-splitting optics primarily separates the primary image of the target by wavelength and simultaneously deflects the optical path. The short-wavelength post-optics primarily performs short-wavelength spectral imaging of the primary real image and projects it onto the focal plane of the short-wavelength camera. The short-wavelength camera primarily detects the target's image in the short-wavelength spectral band. The mid-wavelength post-optics primarily performs mid-wavelength spectral imaging of the primary real image and projects it onto the focal plane of the mid-wavelength camera. The mid-wavelength camera primarily detects the target's image in the mid-wavelength spectral band.

[0044] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A composite telemetry method, characterized in that, The method includes at least the following steps: Step 1: Establish a telemetry link for the target using the first telemetry device. After the link is established, calculate the spatial target position to obtain the first position range. Send the value to the microwave measurement device in real time, and control the turntable to maintain stable tracking of the target and keep the telemetry link stable. Step 2: The second telemetry device automatically acquires and tracks the target within the first location range to obtain a second location range, wherein the area of ​​the second location range is smaller than that of the first location range; Step 3: Based on target acquisition and tracking, the second telemetry device uses a dual-band design with a common optical path to image the tracked target and the background, and records the target's infrared radiation characteristics data.

2. The composite telemetry method according to claim 1, characterized in that, The second telemetry device automatically acquires and tracks the target within the first location range, including: Guided by the target spatial location information provided by the first telemetry device, the second telemetry device automatically captures and tracks the target.

3. The composite telemetry method according to claim 1, characterized in that, The second telemetry device automatically acquires and tracks the target within the first location range, including: The second telemetry device performs a single-device autonomous search to capture and track the designated target.

4. The composite telemetry method according to claim 1, characterized in that, The first telemetry device is a microwave telemetry device, and the second telemetry device is an optoelectronic telemetry device.

5. The composite telemetry method according to claim 1, characterized in that, The establishment of the target telemetry link using the first telemetry device includes: Within its operating range, the telemetry equipment can perform manual coarse alignment, autonomously search for and establish a telemetry link with the telemetry target according to system requirements.

6. The composite telemetry method according to claim 1, characterized in that, The second telemetry device includes two optical aperture observers, a Φ200 main aperture and a Φ120 secondary aperture. The main aperture adopts a dual-band common optical path design for short-wave and mid-wave infrared, which is used for measuring the infrared radiation characteristics of the target. The secondary aperture adopts a continuously variable infrared detection component, which is used for target acquisition and tracking.

7. The composite telemetry method according to claim 1, characterized in that, Step three further includes: collecting the target light radiation and performing a primary image of the target; separating the primary image of the target by wavelength and simultaneously deflecting the optical path; performing short-wavelength band imaging on the primary real image and imaging it onto the focal plane of the short-wave camera to detect the target's image in the short-wavelength band; and performing mid-wavelength band imaging on the primary real image and imaging it onto the focal plane of the mid-wave camera to detect the target's image in the mid-wavelength band.

8. A composite telemetry device, characterized in that, The device includes a first telemetry device and a second telemetry device; The first telemetry equipment includes: an antenna feeder subsystem, a servo subsystem, a telemetry demodulation subsystem, a positioning, orientation and GPS timing subsystem, a calibration subsystem and a power supply subsystem; The second telemetry device includes: a main aperture target characteristic detection and measurement component, a secondary aperture target acquisition and tracking component, a two-dimensional turntable, a tracking control assembly, a human-machine interface, a turntable power supply box, and supporting system cables.

9. A composite telemetry device according to claim 8, characterized in that, The two-dimensional turntable includes: a two-dimensional mechanism, servo control, and stabilization control; the tracking control assembly includes: a tracking processor and a target characteristic measurement assembly.

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