A dual-channel signal detection and control system in a data transmission mode and an implementation method thereof
A signal detection and control system technology, applied in the transmission system, radio transmission system, diversity/multi-antenna system, etc., can solve the problems that the antenna cannot receive radio frequency signals, the hidden danger of repeated information transmission, and increase the communication establishment time, etc., to achieve channel evaluation Accurate, reducing communication establishment time and repeated sending of information, reducing hidden dangers
Pending Publication Date: 2019-01-18
TIANJIN 712 COMM & BROADCASTING CO LTD
View PDF4 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] For the communication interruption problem of the airborne ultrashort wave data transmission module, at present, the method of increasing the number of transmissions is generally adopted. This is an easy-to-implement solution, but this method not only increases the communication establishment time, but also causes hidden danger
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below in conjunction with accompanying drawing:
[0025] Such as figure 1 As shown, the system includes a first radio frequency channel, a second radio frequency channel, an antenna selection control module, a signal quality judgment module and a signal demodulation module; wherein the first radio frequency channel and the second radio frequency channel are respectively connected to the upper antenna and the lower antenna; An input end of a radio frequency channel and an input end of the second radio frequency channel are respectively connected to the antenna selection control module for receiving antenna control signals; two output ends of the signal quality judgment module are respectively connected to two input ends of the signal demodulation module for respectively Output the AGC control signal of the first radio frequency channel and the second radio frequency channel to the signal demodulation module; The radio freq...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a dual-channel signal detection and control system in a data transmission mode and an implementation method thereof. The system comprises a first radio frequency channel, a second radio frequency channel, an antenna selection control module, a signal quality decision module and a signal demodulation module. The system adopts FM mode and anti-jamming mode of demodulation SNR, BER and signal energy judgment mechanism to achieve dual-channel quality evaluation and decision and antenna selection. The invention relates to the airborne ultra-short wave communication field, which can complete channel evaluation and automatic judgment by judging the signal quality of dual-channel reception when the airborne ultra-short wave data transmission module is blocked by a large-scale aircraft turning fuselage, thereby effectively reducing the phenomenon of communication interruption of the airborne ultra-short wave data transmission module caused by the fuselage blocking. The invention has the advantages of simple system structure, accurate channel evaluation, stable and reliable performance and the like.
Description
technical field [0001] The invention relates to self-adaptive judgment and evaluation of an airborne ultrashort wave communication channel, in particular to a dual-channel signal detection and control system and an implementation method in a digital transmission mode. Background technique [0002] For the communication interruption problem of the airborne ultrashort wave data transmission module, the method of increasing the number of transmissions is generally adopted at present. This is an easy-to-achieve solution, but this method not only increases the communication establishment time, but also causes hidden dangers of repeated information transmission. . If the radio frequency signal is blocked by the fuselage of a large aircraft, the antenna cannot receive the radio frequency signal, and the communication of the airborne ultrashort wave digital transmission module is interrupted, the method of increasing the number of transmissions will not work. After several flight t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04B1/401H04B1/00H04B7/06H04B7/08
CPCH04B1/0064H04B1/401H04B7/0602H04B7/0814
Inventor 赵海波李晓辉陈佳林蔡文丽赵雷鸣穆生军王英刘昊丁宸聪宋同心
Owner TIANJIN 712 COMM & BROADCASTING CO LTD