Actualization method of the smart antenna which is based on the software radio and the actualization system of the smart antenna

摘要

Topic As for this invention actualization method of the smart antenna which is based on the software radio which is used for the IMT 2000CDMA system and the actualization system of the smart antenna are offered.SolutionsOn the basis of radio communication channel environmental feature, it classifies the environment of the channel, adopts the processing method of spatial smooth finite difference, it reduces the number of individual dimensions also array reception signal vis-a-vis the dispersed matrix, by the fact that correlation (signal) is cancelled, it makes the correlation signal the independent signal convert consecutively, can obtain the correlation structure of the reception signal, can actualize the identification of environment. Fit reception adaptation beam formation algorithm and transmission adaptation beam formation algorithm are selected due to the result of classifying channel environment, reception weight attaching value and transmission weight attaching value are calculated. As for this invention, adaptability becomes wide, restriction of single adaptation beam formation method is avoided, great rise and maintenance of the based station system easy in comparison with former adaptation beam formation method, at the same time can control the influence of disturbance effectively. Selective figure Figure 2