A wireless communication frame synchronization method and system based on pseudo-random sequence
A pseudo-random sequence and wireless communication technology, applied in the field of wireless communication frame synchronization method system based on pseudo-random sequence, can solve problems such as unfavorable miniaturization design, and achieve the effects of reducing reception and processing channel resource overhead and low power consumption
Active Publication Date: 2020-05-15
SICHUAN JIUZHOU ELECTRIC GROUP
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However, since the airborne platform uses upper and lower antennas, two complete sets of RF receiving channel hardware circuits are required, so that if the number of frequency hopping is fn, the number of receiving channels is increased to 2fn, which brings about a huge impact on receiving processing resources, power consumption, etc. Large demand, and not conducive to product miniaturization design
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[0056] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0057] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0058] Such as figure 2 As shown, the wireless communication frame synchronization method based on the pseudo-random sequence includes synchronization frame formation, frame synchronization decision and frame synchronization control. Synchronous frame formation refers to the control and management of the synchronous frame pulse sequence transmission process, which is a signal-level description behavior and belongs to the frame design category; frame synchronization judgment is based on the relevant ...
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The invention discloses a wireless communication frame synchronization method and system based on a pseudo random sequence. The method comprises the following steps: step A, synchronization frame formation, producing a synchronization frame pulse sequence based on the pseudo random sequence in the transmission; step B, frame synchronization control, periodically performing antenna switching in thereceiving, enabling the onboard upper antenna and lower antenna radio frequency signals to alternatively enter a receiving processing channel; step C, frame synchronization judgment, processing a related peak sequence produced by the receiving processing channel to obtain a captured pulse sequence, and performing the synchronization frame judgment; and step D, reducing a complete synchronizationframe pulse sequence according to the captured pulse sequence to finish the frame synchronization. By adopting the synchronization frame design algorithm, and combining the upper and lower antenna reasonable switching mechanism, the resource overhead of the receiving processing channel for synchronously capturing the frequency-hopping frames in the wireless communication network can be effectivelyreduced, the wireless communication frame synchronization method is flexible in design and easy to realize, and especially suitable for the design and application of miniaturized and low-power consumption product.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless communication frame synchronization method system based on a pseudo-random sequence. Background technique [0002] Synchronization is a critical aspect of signal processing in digital communication systems. In existing wireless communication network designs, a set of link layer communication frame formats usually includes synchronization frames and information frames. Synchronization frame generally does not carry information, adopts double-pulse transmission, and has strong anti-interference ability by adopting methods such as spread spectrum and frequency hopping. The synchronization frame is mainly used to capture the communication signal frame synchronously, and to play the role of precise timing synchronization indication for the correct decoding of the information frame. [0003] The synchronization design of most existing wireless communication frames mos...
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IPC IPC(8): H04L27/26
CPCH04L27/2656
Inventor 杨其聪钟海于常荣
Owner SICHUAN JIUZHOU ELECTRIC GROUP