PXI synthetic instrument based microwave landing simulator
A synthetic instrument, microwave landing technology, applied in the testing field of microwave landing systems, can solve the problems of inconvenient upgrade and maintenance, excessive size, difficult operation and control, etc., and achieve the effects of convenient and fast maintenance, small size and light weight
Inactive Publication Date: 2012-12-19
GUANGZHOU HANGXIN AVIATION TECH CO LTD
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Problems solved by technology
For traditional microwave landing simulators, they are all desktop instruments, so they are too large, not easy to carry, and have high investment costs. In addition, their hardware and software are already solidified, which will make it difficult to operate and control and not easy to upgrade. and maintenance
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[0023] Depend on figure 1 As shown, a microwave landing simulator based on PXI synthetic instruments, which includes:
[0024] A computer for generating a functional baseband signal and loading the generated functional baseband signal into a vector signal source based on a PXI synthesis instrument;
[0025] The vector signal source based on the PXI synthesis instrument is used to construct the functional baseband signal into a corresponding sequence pair signal with a complete transmission cycle according to the standard time slot and sequence, and transmit the sequence pair signal with a complete transmission cycle. The standard slots and sequences described above are derived from ICAO's Standards and Recommended Practices (SARPS);
[0026] The computer performs data communication with the vector signal source based on the PXI synthesis instrument through the PXI backplane bus. In essence, for the computer, it is the carrier used to run the microwave landing simulator softw...
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The invention discloses a PXI synthetic instrument based microwave landing simulator comprising a computer and a PXI synthetic instrument based vector signal source, wherein the computer carries out data communication with the PXI synthetic instrument based vector signal source through a PXI backplane bus. The PXI synthetic instrument based microwave landing simulator disclosed by the invention can conveniently upgrade the software and hardware because the vector signal source of the PXI synthetic instrument based microwave landing simulator is generated by configuring modularized hardware and software units and only needs to directly replace a function module when the function module of the vector signal source is faulty, thereby achieving the effects of convenience and fast maintenance; and the PXI synthetic instrument based microwave landing simulator has the advantages of small size and light weight and is widely applied in the field of detection of aeronautical equipment.
Description
technical field [0001] The invention relates to the testing technology of microwave landing system, in particular to a microwave landing simulator based on PXI synthesis instrument. Background technique [0002] Explanation of terms: [0003] Synthetic Instrumentation: Allows configuration and reconfiguration of modular hardware and software units, creating the functionality of multiple measurement devices. [0004] PXI: PCI Extensions for Instrumentation Systems. [0005] The microwave landing simulator is an instrument used to simulate the signal sent by the ground equipment in the microwave landing system. It is mainly designed to realize the detection of the microwave landing system. For traditional microwave landing simulators, they are all desktop instruments, so they are too large, not easy to carry, and have high investment costs. In addition, their hardware and software are already solidified, which will make it difficult to operate and control and not easy to upg...
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IPC IPC(8): G01S7/40
Inventor 陈洪雨周伟光陈波
Owner GUANGZHOU HANGXIN AVIATION TECH CO LTD