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Method for integrally telemetering and ranging target range aircraft

An aircraft and shooting range technology, which is applied in the field of telemetry and ranging of shooting range aircraft through integrated integration, can solve the problems of complex demodulation equipment structure, reduced system power efficiency, waste of bandwidth resources, etc., so as to reduce the system design complexity and power efficiency. Improve and solve the effect of low frequency utilization

Active Publication Date: 2013-01-23
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of waste of bandwidth resources, system power efficiency reduction and complex structure of demodulation equipment in existing system design methods

Method used

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  • Method for integrally telemetering and ranging target range aircraft
  • Method for integrally telemetering and ranging target range aircraft
  • Method for integrally telemetering and ranging target range aircraft

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Embodiment Construction

[0030] At the aircraft transponder side, the aircraft transponder uses the downlink telemetry frame header to sample the uplink pseudo-code spread spectrum ranging signals sent by multiple ground measurement and control stations, and obtains the preset phase arrival time of each pseudo-code chip and the telemetry frame header. The time difference measurement value at the bit time, the transponder puts the time difference measurement value and related parameters into the downlink frame, and sends it to the ground measurement and control station by means of telemetry load suppression modulation, and performs two-way multiplexing of the above time difference measurement value and telemetry data, At the same time, load the sampled time difference measurement value data in the next telemetry frame or a fixed number of telemetry frames at intervals; at multiple ground measurement and control stations, the ground measurement and control station completes the carrier synchronization, sy...

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Abstract

The invention provides a method for integrally telemetering and ranging a target range aircraft and aims to provide a method for simultaneously telemetering and ranging a plurality of ground control stations by utilizing a single-frequency point downlink signal without independently allocating frequency spectrum and power for a ranging signal in a downlink or adopting a spread spectrum ranging signal mechanism. The method is realized through the following technical scheme: respectively sampling uplink ranging pseudo codes sent by the plurality of ground control stations by using a downlink telemetering frame header at a responder end of the aircraft to obtain a time difference measuring value of a chip preset phase reaching moment of each pseudo code and a primary bit moment of the telemetering frame header, carrying out two-path multiplexing on the time difference measuring value and telemetering data, and loading time difference measuring value data in a telemetering frame; finishing carrier synchronization, bit synchronization and frame synchronization of a downlink telemetering signal at a plurality of ground remote control station ends, deducting a corresponding time difference measuring value loaded in the telemetering frame by an obtained telemetering frame header receiving moment, and referencing sending moments of chip preset phases of the pseudo codes to finish telemetering and ranging.

Description

technical field [0001] The invention relates to a method for using a single-frequency point downlink signal to complete simultaneous remote measurement and range-finding aircraft for multiple ground measurement and control stations in shooting range measurement and control. Background technique [0002] PCM-FM signal has a constant envelope characteristic, and the transmitter can use a class C power amplifier, which is relatively phase-shift keyed and has high power utilization. In addition, the PCM-FM signal has the characteristics of strong anti-aircraft flame attenuation ability. Therefore, PCM-FM modulation signal is currently the most commonly used form of downlink telemetry signal for range aircraft measurement and control (the data rate supported by PCM-FM signal in the current project can reach more than 10Mbps). [0003] In the range aircraft measurement and control, in order to support the ranging function of multiple ground measurement and control stations while ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C3/00G01S11/08
Inventor 黄展
Owner 10TH RES INST OF CETC
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