An estimation method of virtual pilot frequency assistant channel

The invention belongs to the technical field of ultra-wideband, which more particularly relates to an estimation method for a virtual pilot frequency auxiliary channel. The invention designs an estimation device for the virtual auxiliary pilot channel, and after processing the received sequence signal, the invention uses a 32-point FFT as well as the LS operation or the LMMSE operation for acquiring the response values of frequency domains in a plurality of subcarrier positions, and then through linear interpolation, the invention acquires the response values of frequency domains in all subcarrier positions. The invention is applicable to the ultra-wideband systems with a plurality of bands and orthogonal frequency division multiplexing. The invention adopts a new signal channel estimation method, thus greatly reducing the complexity of channel estimation devices and efficiently resisting the inter-symbol interference caused by multi-path channels, and the invention can be applied to different UWB channels.