IMPULSE RADIO ULTRA WIDE BANDWIDTH DATA TRANSMISSION ENCODING/DECODING METHOD AND ENCODING/DECODING MODULE

摘要

The present invention provides an IR-UWB data transmission encoding/decoding method and module. The encoding method comprises: in each unit time period lasting T seconds, receiving an N-bit of binary data of an M-bit binary data stream and generating UWB impulse radio signal having a specific frequency fi, determining and generating an amplitude value Ax of the UWB impulse radio signal having the specific frequency fi according to the remaining M-N bits binary data, and finally transmitting the UWB impulse radio signal having the specific frequency fi and the amplitude value. The decoding method corresponds to the encoding method. According to the present invention, the data transmission rate can be increased by four times compared with the conventional data transmission rate without increasing the circuit complexity, which is useful and attractive to the IR-UWB system.

主权项

1. An IR-UWB data transmission encoding/decoding method, wherein the encoding method comprises the following steps:
Step S11: during each unit time period lasting T seconds, receiving an N-bit binary data of an M-bit binary data stream and generating a UWB impulse radio signal having a specific frequency fi; wherein M is a positive integer greater than or equal to 2, N is a positive integer greater than or equal to 1, and M is greater than N; the specific frequency fi is selected among a group of frequencies of a local signal from f1 to fj, wherein i and j are positive integers and j equals to 2N; Step S12: determining and generating an amplitude value Ax of the UWB impulse radio signal having the specific frequency of fi according to the remaining M-N bits binary data; wherein x is a positive integer from 1 to y, y equals to 2′; the amplitude value Ax is selected among a group of amplitude values of the local signal from A1 to Ay; Step S13: transmitting the UWB impulse radio signal having the specific frequency fi and the amplitude value Ax in each unit time period lasting T seconds; wherein the decoding method corresponds to the encoding method and comprises the following steps: Step S21: receiving the UWB impulse radio signal having the specific frequency fi and the amplitude value Ax during each unit time period lasting T seconds; Step S22: restoring the N-bit binary data of the M-bit binary data stream according to the specific frequency fi of the UWB impulse radio signal; Step S23: restoring the remaining M-N bits binary data of the M-bit binary data stream according to the specific amplitude value Ax of the UWB impulse radio signal so as to form the M-bit binary data stream during each unit time period lasting T seconds.