Common troubleshooting method for spread spectrum transponder
A spread spectrum transponder and fault technology, which is applied in the direction of digital transmission system, data exchange network, electrical components, etc., can solve the problems that affect the product development progress, cannot find out the cause of the fault, and the fault location is inaccurate, so as to improve the debugging test efficiency effect
Inactive Publication Date: 2021-05-28
SHANGHAI AEROSPACE ELECTRONICS CO LTD +1
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[0003] The traditional troubleshooting method does not use the fault tree model for analysis, but only inferences based on the phenomenon of product failure. Waste of time, thus affecting the progress of product development
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[0020] The method for troubleshooting common faults of the spread spectrum transponder of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0021] 1. Troubleshooting for abnormal locking of uplink signals:
[0022] (1) External factors: First of all, check whether there is any abnormality or incorrect setting of the ground test system. The specific troubleshooting method is: check whether the uplink input signal level is set too low, generally it should be set between -112dBm ~ -42dBm; check whether the uplink frequency point is set correctly, and whether the uplink Doppler shift is too large, generally The setting is between 100kHz; there is a problem with the parameter setting of the ground equipment, and the parameters such as the spread spectrum code group, code rate, and information rate are verified one by one; whether the cable and the radio frequency line between the ground equipment and the transponder are...
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The invention discloses a common troubleshooting method for a spread spectrum transponder, and the method comprises the steps: analyzing an event through a fault tree analysis method when a fault occurs in the debugging and testing process of the spread spectrum transponder, building a fault tree analysis model, and carrying out the targeted troubleshooting, thereby determining a fault cause, quickly positioning a fault module, analyzing the damage degree of the fault, and achieving a positive effect on subsequent debugging and testing of the responder. Through fault tree modeling analysis and research, the method can provide a basis for fault positioning, fault diagnosis, analysis, troubleshooting and solution of the spread spectrum responder; common faults of the spread spectrum transponder are checked and analyzed, many man-made errors can be avoided in the future testing process, and a good foundation can be laid for improving the debugging and testing efficiency; and through the final positioning research and analysis of the fault module, the method can provide help for the improved design, and lays a foundation for the quality problem of similar products.
Description
technical field [0001] The invention relates to the technical field of electronic manufacturing testing and testing, and the field of testing and testing equipment and systems, in particular to a method for troubleshooting common faults of spread spectrum transponders. Background technique [0002] With the increasing demand for satellites, the spread spectrum transponder, which is an important component of the satellite measurement and control subsystem, has gradually entered the stage of mass production. The purpose of the spread spectrum transponder debugging test is to check whether the function, performance and interface of the transponder meet the mission requirements. In the tests of different development stages, abnormal phenomena and failures are inevitable and normal. [0003] The traditional troubleshooting method does not use the fault tree model for analysis, but only inferences based on the phenomenon of product failure. Waste of time, thereby affecting the pr...
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IPC IPC(8): H04L12/24
CPCH04L41/0631H04L41/0636H04L41/0677
Inventor 彭湃潘建权戴刚
Owner SHANGHAI AEROSPACE ELECTRONICS CO LTD