ofdm receiving synchronization device
A synchronization device and frame synchronization technology, applied in the application field of OFDM technology, can solve problems such as low computational complexity, high estimation accuracy, and inaccurate time synchronization, and achieve the effects of improving operating efficiency, simplifying operations, and improving accuracy
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, the OFDM reception synchronization device of the present invention includes a frame synchronization module 10 , a frequency synchronization module 20 and a symbol synchronization module 30 . The frame synchronization module 10 is used to detect whether there is a data frame arrival; the frequency synchronization module 20 is used to estimate the carrier frequency offset and compensate the frequency offset; the symbol synchronization module 30 is used to utilize the received long The cross-correlation of the training sequence and the local training sequence to find the starting position of the OFDM data.
[0027] The frame synchronization module 10 includes a first delay autocorrelation unit 101 , a 64-point averaging unit 102 , a...
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