一種適用于QAM通信系統(tǒng)的盲均衡算法
A Blind Equalization Algorithm Adapt to the QAM Communication System
-
摘要: 該文提出了一種適用于QAM通信系統(tǒng)的盲均衡算法。該算法克服了傳統(tǒng)GSA,CMA等算法收斂后剩余 誤差大的缺點(diǎn),保持了較高的收斂速度,在均衡的同時(shí)能夠自動(dòng)補(bǔ)償信道引起的相位誤差。從計(jì)算機(jī)仿真結(jié)果可以 看出,該算法具有較好的均衡特性。
-
關(guān)鍵詞:
- 盲均衡; 剩余誤差; 收斂速度; 均方誤差; 誤符號(hào)率
Abstract: In this paper, a new blind equalization algorithm adapt to the QAM communication system is proposed, which overcomes conventional General Sato Algorithm (GSA), Gonstant Modulus Algorithm. (CMA), etc. algorithms larger residual error after convergence and still keeps a higher convergence rate, and it can recover the channel phase error automatically at the same time. The algorithms better equalization property is proved by the computer simulation results. -
Godard D N. Self-recovering equalization and carrier tracking in two-dimensional communication systems. IEEE Trans. on Commun., 1980, COM-28(11): 1867- 1875.[2]Sato Y. A method of self-recovering equalization for multilevel amplitude modulation systems. IEEE Trans. on Commun, 1975,COM-23(6): 679 - 682.[3]Benveniste A, Goursat M. Blind equalizers. IEEE Trans. on Commun., 1984, COM-32(8): 871 - 883.[4]Picchi G, Prati G. Blind equalization and carrier recovery using a stop-and-go decision-directed algorithm. IEEE Trans. on Commun., 1987, COM-35(9): 877-887.[5]Kil Nam Oh, Yong Ohk Chi. Modified constant modulus algorithm: blind equalization and carrier phase recovery algorithm.1995 IEEE International Conference on Communications, ICC 95Seattle, Gateway to Globalization, 1995, vol. 1:498 - 502.[6]徐金標(biāo),葛建華,王新梅.一種新的盲均衡方法.通信學(xué)報(bào),1995,16(5):78-81. -
計(jì)量
- 文章訪問(wèn)數(shù): 2376
- HTML全文瀏覽量: 119
- PDF下載量: 677
- 被引次數(shù): 0
下載:
