Frequency hopping communication method and device, storage medium and receiver
A frequency hopping communication and transmitter technology, applied in electrical components, transmission systems, etc., can solve problems such as reduced business data volume, a large amount of time overhead, and decreased communication sensitivity, achieving the effect of increasing business data volume and reducing bit error rates
Active Publication Date: 2021-10-01
北京中天星控科技开发有限公司
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Problems solved by technology
On the one hand, a shorter symbol length needs to be adopted, but this method will lead to a decrease in communication sensitivity
On the other hand, if the symbol length remains unchanged, frequent frequency hopping is required, but frequent frequency hopping will result in the need for a large number of service time slot synchronization words and frequency hopping switching time overhead, thereby occupying the transmission space of service data, resulting in The amount of business data allowed to be transmitted in the channel is reduced
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[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0045] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.
[0046] In the frequency hopping communication method of the prior art, when the receiver receives the modulated signal sent by the transmitter, it needs to first determine the frame synchronization position of the synchronous sub-time slot in the modulated sig...
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The invention provides a frequency hopping communication method and device, a storage medium and a receiver. The method comprises the following steps: collecting a modulation signal sent by a transmitter; performing demodulation processing on the modulation signal to obtain a data stream of code element data; performing correlation operation on the code element data and a preset synchronous code, determining a bit synchronization clock according to a first operation result, and performing bit synchronization processing on the code element data according to the bit synchronization clock to obtain processed code element data; performing correlation operation on the processed code element data and a preset frame synchronization word, and determining a frame synchronization position according to a second operation result; and counting the processed code element data from the frame synchronization position, and extracting service data from the data stream according to a code element counting result. According to the technical scheme of the invention, the communication sensitivity can be ensured, and the service data volume allowed to be transmitted in the channel can be improved.
Description
technical field [0001] The present invention relates to the technical field of frequency hopping communication, in particular to a frequency hopping communication method, device, storage medium and receiver. Background technique [0002] Frequency hopping communication refers to the communication method in which the carrier frequency of the transmission signal transmitted by both parties is discretely changed according to a predetermined rule. It has strong anti-interference ability, anti-fading ability and anti-interception ability. Guaranteeing the establishment of reliable communication in harsh environments is not only widely used in military communications, but also in civilian mobile communications. Among them, the frequency hopping rate is a direct factor affecting the anti-interference ability and anti-interception performance of frequency-hopping communication. The higher the frequency hopping rate, the stronger the anti-interference ability and anti-interception pe...
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IPC IPC(8): H04B1/7156H04B1/715
CPCH04B1/7156H04B1/715H04B2001/7152
Inventor 段连喜王继胜曹占生李雪
Owner 北京中天星控科技开发有限公司