A flying satellite carrier frequency compensation method

A carrier frequency and compensation method technology, applied in the field of frequency compensation, can solve the problems of unpublished mature solutions and no protection in the frequency compensation method of flying satellites, so as to ensure stability and consistency, improve reliability, reduce The effect of carrier frequency deviation

Active Publication Date: 2019-01-25
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flying satellites are generally single-board structures without protection, and are more significantly affected by the space environment
[0006] International research on flying satellites is still in its infancy. According to public information, only the Stardust flying s

Method used

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  • A flying satellite carrier frequency compensation method
  • A flying satellite carrier frequency compensation method
  • A flying satellite carrier frequency compensation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1:

[0031] A method for compensating the carrier frequency of a flying satellite, which adjusts the carrier offset caused by the difference of components and includes the following steps:

[0032] a) Select flying satellite S as the reference flying satellite, and measure the carrier frequency value of the reference satellite f carrier_ref .

[0033] b) Adjust the FREQ of the radio frequency module of the flying satellite to be calibrated. FREQ is the carrier frequency configuration register value of the radio frequency module of the flying satellite to make the carrier frequency of the flying satellite to be calibrated and the carrier frequency value of the reference flying satellite f carrier_ref Consistent. Methods as below:

[0034] b1) Use a spectrum analyzer to measure the carrier frequency of the radio frequency module of the flying satellite to be calibrated f carrier_cal , Then the crystal oscillator frequency of the flying satellite radio frequency module to...

Example Embodiment

[0037] Example 2:

[0038] A method for compensating the carrier frequency of a flying satellite, which adjusts the carrier offset caused by the temperature difference, and includes the following steps:

[0039] The flying satellites to be calibrated are integrated with temperature sensors, which can measure the temperature of the flying satellites, and dynamically adjust the FREQ value of the radio frequency modules of the flying satellites to be calibrated according to the temperature information collected by the temperature sensor, thereby ensuring the stability of the download wave frequency under different temperature conditions The method is as follows:

[0040] a) The influence of measuring temperature on carrier frequency

[0041] Put the flying satellite to be calibrated into the high and low temperature box and set the test temperature range [T low , T high ], test in a thermal vacuum environment to get the carrier frequency value of the radio frequency module of the flyin...

Example Embodiment

[0046] Example 3:

[0047] The components and temperature differences will cause the carrier frequency deviation of the satellite communication module, so comprehensive adjustment is required.

[0048] A method for compensating the carrier frequency of a flying satellite includes the following steps:

[0049] (1) Choose flying satellite S as the reference flying satellite, and the operating temperature of the flying satellite in orbit is T 0 Measure the carrier frequency value of the reference satellite f carrier_tef .

[0050] b) in T 0 Adjust the FREQ of the radio frequency module of the flying satellite to be calibrated under temperature. FREQ is the carrier frequency configuration register value of the radio frequency module of the flying satellite, so that the 0 Under temperature, the carrier frequency of the flying satellite to be calibrated and the carrier frequency of the reference flying satellite f carrier_ref Consistent. Methods as below:

[0051] b1) Use a spectrum analyz...

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Abstract

The invention provides a flying satellite carrier frequency compensation method, which is used for reducing carrier frequency deviation between different flying satellites and improving reliability ofspace wireless network. This method mainly corrects the carrier frequency of flying satellite according to device difference and temperature drift. Firstly, the carrier offset caused by device difference is adjusted by adjusting the configuration register of RF module. Secondly, the temperature of the flying satellite is measured by the temperature sensor, and the carrier frequency is kept stableby dynamically adjusting the parameters of the communication module. Through the above measures, the stability and consistency of downloading wave frequencies of different flying satellites at different temperatures can be ensured, and the reliability of space networking can be improved.

Description

technical field [0001] The invention relates to a frequency compensation method suitable for on-orbit flight of flying satellites, which is used for reducing the carrier frequency deviation between different flying satellites and improving the reliability of space wireless networking. Background technique [0002] Flying satellites are satellite systems with a mass of less than 0.1Kg, usually in a plate-like structure, on which subsystems such as satellite services, communications, digital tubes, payloads, and power supplies are integrated. The application fields of flying satellites include space communication, navigation, science / exploration, telemetry perception, ground imaging, military reconnaissance, etc. [0003] With the advancement of human exploration of space, new application requirements continue to emerge. In applications that require multiple points in space and simultaneous measurement (such as large-scale spatial radiation stereoscopic detection), a large num...

Claims

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Application Information

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IPC IPC(8): H04L27/00H04B7/185
CPCH04B7/18519H04L27/0014H04L2027/0026
Inventor 杨磊宋新赵勇樊程广陈小前陈利虎绳涛白玉铸
Owner NAT UNIV OF DEFENSE TECH
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