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High data rate burst communication fast acquisition method and device based on spread-spectrum technology

A high data rate, burst communication technology, applied in the field of fast capture of high data rate burst communication, can solve the problems of unable to meet the fast capture requirements of ultrashort wave burst communication, long search time, etc., and achieve good maintainability and testability High performance, simple hardware implementation, and easy effects

Active Publication Date: 2017-05-31
西安烽火电子科技有限责任公司
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Problems solved by technology

[0008] It can be seen that the search time is too long to meet the fast capture requirements of ultrashort wave burst communication

Method used

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  • High data rate burst communication fast acquisition method and device based on spread-spectrum technology
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  • High data rate burst communication fast acquisition method and device based on spread-spectrum technology

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0056] Embodiments of the present invention provide a method for fast acquisition of high data rate burst communication based on spread spectrum technology, such as figure 1 As shown, the method includes the following steps:

[0057] Step 1, acquiring a radio frequency analog signal received by an antenna, filtering and amplifying the radio frequency analog signal to obtain an amplified radio frequency analog signal.

[0058] Step 2, obtaining the sine wave l...

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Abstract

The invention belongs to the technical field of ultra short wave communication systems, and particularly relates to a high data rate burst communication fast acquisition method and a device based on a spread-spectrum technology. The method comprises steps: accumulation down sampling is carried out on base band data with twice the spread-spectrum code rate as accumulation zero clearing signals; down sampling base band signals and spread-spectrum codes sampled at the twice spread-spectrum code rate are subjected to vector storage, the down sampling base band data slide at the twice spread-spectrum code rate respectively, the phase of the local spread-spectrum codes is fixed and the local spread-spectrum codes do not slide, under the same clock action, the two are grouped for XOR accumulation, an incoherent peak of a half chip is solved and compared until the incoherent peaks of all half chips are compared and the maximum value, the second maximum value, the third maximum value and the code phase are latched, the average value of the incoherent peaks of all code phases is solved, and whether signals are acquired successfully is judged. Thus, acquisition on high data rate ultra short wave burst communication based on the spread-spectrum technology can be quickly realized, and the hardware realization complexity is low.

Description

technical field [0001] The invention belongs to the technical field of ultrashort wave communication systems, and in particular relates to a method and device for fast capturing high data rate burst communication based on spread spectrum technology. Background technique [0002] The frequency band of the ultrashort wave channel is about 30-300MHz, which has the advantages of long communication distance, low communication cost, strong invulnerability, etc., and occupies an important position in the field of military communication. Ultrashort wave communication is mainly transmitted by space wave line-of-sight, which is greatly affected by terrain and buildings; when it is used for air-to-ground communication, it is less affected by ground objects and has a longer propagation distance. Spread spectrum communication is widely used due to its strong anti-noise, anti-fading, anti-jamming and anti-multipath capabilities, and has the advantages of information concealment and low in...

Claims

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Application Information

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IPC IPC(8): H04B1/00H04B1/69H04B1/7075H04B1/7156
CPCH04B1/0007H04B1/69H04B1/7075H04B1/7156H04B2001/71563
Inventor 胡山锋王君方张宝强李瑞赵微唐宏震乔健张忠波路盼李钧
Owner 西安烽火电子科技有限责任公司
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