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Device and method for sending pulse code modulation code streams and data

A technology of pulse code modulation and code stream, which is applied in the field of aerospace measurement and control, to achieve the effects of efficient information transmission, reduction of out-of-band interference, and high reliability of data transmission

Active Publication Date: 2018-06-15
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the above-mentioned problems about how to meet the needs of high-speed, high-reliability, and efficient information transmission and how to effectively reduce out-of-band interference, no effective solutions have been proposed so far.

Method used

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  • Device and method for sending pulse code modulation code streams and data
  • Device and method for sending pulse code modulation code streams and data
  • Device and method for sending pulse code modulation code streams and data

Examples

Experimental program
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Embodiment 1

[0029] Attached figure 1 It shows a block diagram of the system function composition of the device for transmitting a pulse code modulation code stream according to Embodiment 1 of the present invention. Reference attachment figure 1 As shown, this embodiment provides a device 100 for transmitting a pulse code modulation code stream, the device 100 includes: an intermediate frequency modulation unit 110, configured to perform intermediate frequency modulation on the pulse code modulation code stream to generate an intermediate frequency modulation signal; and The radio frequency unit 120 is used to modulate the intermediate frequency modulation signal into a radio frequency modulation signal for transmission. Wherein, the radio frequency unit 120 includes an up-conversion circuit 130, which is used to perform up-conversion processing on the intermediate frequency modulation signal to generate and transmit the radio frequency modulation signal.

[0030] As a specific implementatio...

Embodiment 2

[0075] See Picture 9 This embodiment provides a device 20 for sending data, including: a pulse code modulation device 200 for pulse code modulation on data to generate a pulse code modulation code stream; and a device for sending pulses according to the first embodiment. Apparatus 100 for encoding and modulating code streams.

[0076] As a specific example, the sent data may be telemetry data in the aerospace measurement and control field. Through the solution disclosed in this embodiment, high bit rate and highly reliable data transmission are ensured. This solves the technical problems of how to meet the demand for high-speed, high-reliability, and efficient information transmission and how to effectively reduce out-of-band interference.

Embodiment 3

[0078] reference Picture 10 As shown, this embodiment provides a method for transmitting a pulse code modulation code stream, including:

[0079] S1002: Perform intermediate frequency modulation on the pulse code modulation code stream to generate an intermediate frequency modulation signal;

[0080] S1004: Up-converting the intermediate frequency modulation signal to generate a radio frequency modulation signal; and

[0081] S1006: Transmit a radio frequency modulation signal.

[0082] Therefore, according to the method of this embodiment, the latest technology of digital electrical technology can be fully utilized, which not only meets the demand for productization, but also achieves the purpose of reducing bandwidth, increasing frequency band utilization and power utilization. Thereby, the technical problem proposed in the patent application of the present invention is solved.

[0083] Optionally, the operation of performing intermediate frequency modulation on the pulse code modul...

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Abstract

The invention discloses a device and method for sending a pulse code modulation code stream and data. The method for sending the pulse code modulation code stream comprises the steps that the pulse code modulation code stream is subjected to intermediate-frequency modulation to generate an intermediate-frequency modulation signal; the intermediate-frequency modulation signal is subjected to up-conversion processing to generate a radio frequency modulation signal; and the radio frequency modulation signal is transmitted.

Description

Technical field [0001] This application relates to the field of aerospace measurement and control, and specifically, to a device and method for transmitting pulse code modulation code streams and data. Background technique [0002] The telemetry system is an important part of the system composition of the launch vehicle. The function of the telemetry system is to measure the working status and environmental parameters of the missile (arrow) during flight, to evaluate the performance of the launch vehicle, analyze the failure, improve the design and production process Provide evidence. [0003] At present, the wireless telemetry and data transmission system of my country's launch vehicle adopts the PCM-FM transmission system specified in the national military standard GJB21.1, the aerospace industry standard QJ 2812-96, and PCM-FM is also commonly used in the field of foreign telemetry technology. Transmission system. The modulation system has a relatively simple implementation met...

Claims

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Application Information

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IPC IPC(8): H04B14/04
CPCH04B14/046
Inventor 孙雪峰王星来梁晨光宋锐王志有夏国江赵燕宁高利李晓斐金晶陈伟赵锦瑾贾学先宫长辉邓永福张磊任宁王岩陈明韩洁杨伟宏李慧辛海华任凯韩明史磊
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG