Synchronization process and element for CHIRP spread spectrum communication system
A spread spectrum communication and synchronization signal technology, applied in electrical components, transmission systems, etc., can solve problems such as restricting applications, affecting the effect of synchronization, errors, etc., to reduce computational complexity and improve synchronization accuracy.
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[0016] The specific embodiment of the method of the present invention is as figure 1 As shown, the specific steps are described as follows:
[0017] Step 1: Initially set up a synchronous clock signal.
[0018] Step 2: Generate a local reference signal under the control of the initial clock signal or the synchronous clock signal generated in step 7. The center frequency of the local reference signal is the same as the center frequency of the CHIRP signal generated by the transmitter, but the frequency sweep of the local reference signal The range and sweep time are twice as large as the sweep range and sweep time of the CHIRP signal generated by the transmitter; (through the processing of this step, the influence of the channel is removed)
[0019] Step 3: The local reference signal generated in step 2 is multiplied by the received signal after taking the conjugate;
[0020] Step 4: Estimate the power spectrum of the product of step 3;
[0021] Step 5: find out the intensit...
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