【摘要】 在 GSM系统里 ,由于带宽限制、多径传输、多普勒效应等因素的存在给信道中造成了不可避免的符号间干扰 ,从而给接收端的正确译码带来了很大的不便。介绍了一项新技术— Turbo检测技术在一定程度上可以有效地减轻 ISI。这种检测方式是一种在可选频信道中的传输将“Turbo原理”应用于迭代均衡技术和译码技术的新型检测技术。主要讨论了如何将 Turbo检测技术应用于 GSM系统的可行性。可以看到 ,在 GSM系统中使用 Turbo检测技术可以获得更好的系统性能 ,并能够满足第 2代移动通信系统进一步发展的各种需求更多还原

【Abstract】 In mobile telecommunication systems,such as the GSM system, the receiver has to combat time-variant ISI due to limited bandwidth, multipath propagation and doppler effect. A very efficient way to combat ISI is the so-called Turbo-detection scheme. Turbo detection applies the "Turbo principle" to iterative equalization and decoding of data transmitted via frequency selective channels. In this paper, the authors mainly introduce the application of Turbo-detection in GSM. And it is evident that Turbo-detection will bring more ideal performance in GSM system, and be able to satisfy the requirement of the future GSM systems.更多还原