The Experiment Research Of TS-NMT On Wireless Channel

Time Shift-Non-orthogonal Multi-modulation Technology (TS-NMT) is a digital multicarrier modulation technology which was invented by professor of Liang Dequn. Compared with traditional multicarrier modulation technology, it is not limited by orthogonality between subwaves, so it shows large advantage. In the last ten years, TS-NMT has obtained large development. Its feasibility and advanced characteristics have proved in theory and computer simulation. The physical testing in the LAN-channel of 5# twicepair 100 meters length has also complemented successful. But the teasting in wireless channel hasn't been done yet, which is a important imperfection for Practical applications.The study on physical testing in wireless channel for TS-NMT is introduced in this thesis. On the first, for testing wireless channel model, using SignalWave board and radio frequency machine construct wireless communication system and make experiment. Comparing wireless channel model tested with theory wireless channel model,we found that the wireless channel model tested is right.On the second, I developed algorithm of TS-NMT modulation and demodulation based on FPGA. For proving the feasibility of TS-NMT on wireless channel, I had completed the algorithm of TS-NMT modulation and demodulation on the FPGA,which is determined by the complexity and parallelism of algorithm of TS-NMT modulation and demodulation.