摘要：In order to study the contribution of the channel estimation and joint measuring technology on the third generation mobile communications (3G), the channel estimation and joint detection model of the 3G system has been installed to analyze the channel estimation approaches grounded on emergency setups and training sequence. Pulse shaping filtering has been conducted by operations such as QPSK baseband modulation and Spread Spectrum on the User Data Source; then to channel estimate and joint measure the data received from base station via the Additive White Gaussian Noise channel. In line with the simulation results, with the increase of signal to noise ratio，the impulse response graph of the signal via the Steiner Estimator channel levels with that via the noise-free channel. Zero Forcing Block Linear Equalizer (ZF-BLE) has a good effect on eliminating the multipath interference and the inter-symbol interference in the system, which prove the good effects on the 3G system of using both the channel estimation technology of the Steiner Estimator and the joint measuring technology of the ZF-BLE, which is of good application prospects.
关键词：channel estimation;Steiner Estimator;joint measuring;Zero Forcing Block Linear Equalizer
