Frequency-hopping transmission system based on double-pattern fast synchronization method

Abstract

The invention relates to a frequency-hopping transmission system based on a double-pattern fast synchronization method. The system can quickly and stable establish synchronization, initial synchronization is established quickly through a short period frequency-hopping pattern, and stable synchronization is kept through a long period frequency-hopping pattern. The system performs data processing through a base band module formed by a programmable logic device, i.e., packaging and depackaging of protocol frames, frequency-hopping pattern generation, system synchronization and system multi-parameter configuration, etc.; radio frequency characteristic processing is completed through software configuration of a radio frequency integrated chip, i.e., up / down-conversion, modulation and demodulation, low noise amplification and power amplification, etc.; system working parameters can be realized by configuring a base ban module and a radio frequency system according to application requirements; and a system working mode can be set as a fixed frequency or frequency hopping communication system according to communication requirements, convenient and flexible configuration can be performed through an upper computer interface. The double-pattern fast synchronization method enhances anti-interference performance of the system, shortens synchronization establishing time, and is good in confidentiality and strong in anti-interference capability and anti-interception capability.

Description

technical field [0001] The invention relates to a wireless data transmission system for frequency hopping communication, which belongs to the field of wireless communication. The system involves frequency hopping communication technology, frequency hopping pattern and synchronization technology. For a frequency hopping transmission system, its hopping rules are extremely difficult to be detected. Therefore, it can be used for confidential data transmission, the system is easy to expand, and the configuration is flexible. Background technique [0002] The traditional wireless data transmission system only communicates on a single frequency, and when the frequency is greatly interfered, the communication interruption phenomenon is very easy to occur; in addition, a single frequency is also very easy to be intercepted and tracked by the enemy, resulting in information leakage. The frequency in the frequency hopping communication system hops randomly according to the law of the ...

AI Technical Summary

Problems solved by technology

[0003] The commonly used frequency hopping transmission system uses a single frequency hopping pattern for synchronization establishment and data communication, which affects the synchronization establishment time or system anti-interception performance, and the system parameters are not highly adjustable and configurable.

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