Channel estimation method for single carrier frequency domain equalization under low energy dispersion multipath channel
A channel estimation and frequency domain equalization technology, applied in multi-frequency code systems, shaping networks in transmitter/receiver, baseband system components, etc., can solve problems such as performance loss, and achieve improved performance and accurate noise power Effect
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[0025] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0026] The present invention provides a channel estimation method for single-carrier frequency-domain equalization under low-energy dispersive multipath channels, as shown in the attached figure 1 A schematic diagram of the transmission and reception of a single-carrier frequency domain equalization system is shown:
[0027] At the transmitting end, the signal to be transmitted is encoded to form a data block with a length of M, and the last M of each data block is CP symbols are copied to the front of the data block as the cyclic prefix (CP: Cyclic Prefix) of the data; at the same time, a pilot with a length of N is added to the front of the data block, and the last N of the pilot is CP The symbols are copied to the front of the pilot as the cyclic prefix of the pilot; the same pilot signal is also retained at the receiving end. The pilot frequency of t...
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