Signal synchronization method and device, computer equipment and storage medium
A technology for signal synchronization and signal reception, applied in the field of communications, can solve the problems of affecting the synchronization of received signals, reducing the accuracy and efficiency of received signals, etc., to achieve the effect of improving reliability, reliable synchronization, and ensuring signals
Active Publication Date: 2019-05-28
深圳市华智芯联科技有限公司
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[0003] Generally, in order to meet the requirements of ultra-long-distance transmission, the receiver in the wireless communication system needs to work in a very low carrier-to-noise ratio channel, which reduces the accuracy and efficiency of the received signal, thereby affecting the received signal in the wireless communication system sync issues for
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[0066] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0067] A signal synchronization method provided by the embodiment of this application can be applied to such as figure 1 The wireless communication system shown. Such as figure 1 As shown, the wireless communication system includes a master node 101 and multiple slave nodes 102 . Wherein, the master node 101 can be a cloud server, a remote server, etc., and the slave node 102 can be various personal computers, notebook computers, smart phones, tablet computers, computer equipment, etc. It is not limited; wherein, the above-mentioned master node 101 can perform wireless ...
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The invention relates to a signal synchronization method. The invention discloses a device, computer equipment and a storage medium. the slave node processes the acquired data through different filters; obtaining a first correlation value and a second correlation value, comparing the maximum value of the first correlation value and the maximum value of the second correlation value with a preset threshold value; when the comparison result is that the address code matching is successful, performing compensation synchronization on the received signal; The acquired data comprises two continuous spread spectrum symbol periods; determining a maximum value from the first and second correlation values, searching a maximum value in 2N continuous correlation values; wherein the determined maximum value is also a real peak value; According to the method, the pseudo-correlation peak value is prevented from being mistakenly detected when the carrier-to-noise ratio is low, namely the noise interference is large, the address code detection reliability is improved, in addition, compensation is carried out through the calculated carrier frequency deviation and symbol synchronization deviation afteraddress code matching succeeds, and rapid and reliable synchronization of receiver signals in a wireless communication system can be guaranteed.
Description
technical field [0001] The present application relates to the technical field of communication, and in particular to a signal synchronization method, device, computer equipment and storage medium. Background technique [0002] With the rapid development of the Internet of Things technology, its application in various fields is becoming more and more extensive, and wireless communication technology, as one of the main communication technologies of the Internet of Things, is also more and more widely used. Therefore, in the increasingly wide application of wireless communication technology, high requirements are put forward for the low power consumption and long-distance transmission of the wireless communication system. [0003] Generally, in order to meet the requirements of ultra-long-distance transmission, the receiver in the wireless communication system needs to work in a very low carrier-to-noise ratio channel, which reduces the accuracy and efficiency of the received s...
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IPC IPC(8): H04B1/69H04B1/7073H04B1/709H04W56/00
Inventor 陈忠
Owner 深圳市华智芯联科技有限公司