Data transmission rapid frequency hopping radio station
A technology of data transmission and radio, which is applied in the field of frequency hopping spread spectrum communication, can solve the problems of anti-interference, achieve the effect of reducing area, reducing system synchronization error, and saving hardware cost
Active Publication Date: 2014-03-12
广东长英科技有限责任公司
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Therefore, an important problem facing modern communication is the problem of anti-jamming
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[0037] The frequency hopping radio station can be divided into two circuit boards, the lower board and the upper board. The implementation method of the fast frequency hopping radio station for data transmission with a frequency hopping bandwidth of 10 MHz, a frequency hopping range of 210 MHz to 220 MHz, and a frequency hopping rate of more than 1000 hops per second will be described in detail below with reference to the accompanying drawings.
[0038] figure 1 Shown is the functional block diagram of the frequency hopping communication system. The working mode of the system is half-duplex mode. The receiving link and the transmitting link are connected through a duplexer to realize the switching between sending and receiving. The overall structure block diagram of the frequency hopping radio station is as follows: figure 2 As shown, the main function of the baseband module is to perform transceiver control and register configuration, and the main function of the radio freq...
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The invention relates to a data transmission rapid frequency hopping radio station, capable of correspondingly modifying circuits such as a filter and the like according to actual requirement of a user so as to realize wireless frequency hopping communication in a wide frequency band of 175 MHz to 240MHz. Frequency hopping band width of the radio station is adjustable, band widths such as 5MHz, 10MHz, 20MHz and the like can be supported, frequency hopping speed is more than1000 hops per second, and the minimum frequency step value can be 0.12Hz. In structure, the radio station provided by the invention can be divided into two parts, namely a base band module and a radio frequency module, wherein the base band module is arranged below the radio frequency module, and the base band module and the radio frequency module are connected by virtue of a contact pin. The radio frequency module adopts a double-channel direct digital frequency synthesizer and a corresponding signal conditioning circuit as a frequency hopping local oscillator and has the advantages of high frequency hopping speed and high accuracy. The radio station provided by the invention can realize fixed frequency communication and rapid frequency hopping communication according to a customized protocol and has the advantages of small volume, high frequency hopping speed and strong anti-interference performance.
Description
technical field [0001] The invention relates to a method for realizing fast frequency hopping radio stations for data transmission, which belongs to the field of wireless communication and relates to frequency hopping spread spectrum communication technology. It can be used for wireless digital transmission, and it is easy to expand for voice communication and image transmission. Background technique [0002] Traditional radio stations are characterized by only communicating on a single frequency point. When the frequency point is interfered, communication interruptions are likely to occur. With the development of the communication industry, the establishment of various communication networks makes the limited frequency resources more crowded, and the mutual interference is particularly serious. Therefore, an important problem facing modern communication is anti-jamming problem. [0003] Frequency hopping technology is an effective anti-jamming technology emerging in elect...
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IPC IPC(8): H04B1/7136
Inventor 吕英明李曜良王小庆吕咸亮乐磊熊俊刘学
Owner 广东长英科技有限责任公司