Ultra-wide band signal receiver

An ultra-wide band (UWB) signal receiver, comprising a signal processing unit, a determination unit and a channel estimation unit, the signal processing unit being connected to the determination unit and the channel estimation unit, and the determination unit being also connected to the channel estimation unit, wherein:

• the signal processing unit comprises a plurality of processing modules, and the signal processing unit is configured to perform correlation processing on a plurality of sampled discrete received signals through a preamble symbol sequence and the plurality of processing modules to obtain a first processing result, the plurality of sampled discrete received signals being a plurality of signals after sampling the received signals;
• the determination unit is configured to capture the first processing result and determine an index value corresponding to the strongest path of the received signal;
• the channel estimation unit is configured to generate a control signal according to the index value, and the control signal is configured to control part of the processing modules in the signal processing unit to be in a closed state;
• the signal processing unit is further configured to control the part of the processing modules to be in the closed state according to the control signal, and perform correlation processing on the plurality of sampled discrete received signals by using remaining processing modules in an open state and the preamble symbol sequence to obtain a second processing result;
• and
• the channel estimation unit is further configured to perform channel estimation according to the second processing result to obtain a channel estimation result.