A statistical channel model of wideband UHF radio waves along rectangular-like mine tunnel;

The mine tunnel and the overall focus on local construction sites of thinking,from the three-dimensional visual clearly show to be shown the roadway and its focus on the site,to simulate the mine fire smoke in the tunnel in the scene to provide liquidity situation.

Based on the multi-section Nakagami distribution statistical channel model of mine tunnel for wideband radio wave, the bit error rate (BER) performance of multicarrier direct-sequence code-division-multiple-access (MC-DS-CDMA) modulation in mine tunnel was simulated.

Analysis on communication performances of DS-CDMA modulation technology in mine roadway;

Design of the Seismic Data Acquisition Instrument for Tunnel Advanced Detection;