公开(公告)号：US20030058959A1

公开(公告)日：2003-03-27

申请号：US09964200

申请日：2001-09-25

申请人： Caly Networks.

发明人： Manouchehr S. Rafie ,  Jun Lu ,  Mark Edward Snesrud

IPC分类号： H04K001/02

CPC分类号： H04L27/368 ,  H03F1/3247 ,  H03F1/3294

摘要： A method for a combined adaptive digital pre-distorter and pre-equalizer apparatus in single- and/or multiple-link hopping radio systems including hopping among a plurality of radio links to transmit variable-length bursts of radio signals on the plurality of radio links. Further, pre-distorting amplitude and phase of transmitted signal constellations based on the inverse AM-to-AM and AM-to-PM characteristics and the operating conditions of the high-power amplifier, respectively. Further, pre-equalizing amplitude and group-delay variations of the transmit RF radio using the pre-stored estimated complex tap coefficient of the pre-equalizer under different frequency bands.

摘要翻译： 一种用于单和/或多链路跳频无线电系统中的组合自适应数字预失真器和预均衡器装置的方法，包括在多个无线电链路之间跳频以在所述多个无线电链路上传送无线电信号的可变长度脉冲串 。 此外，分别基于反相AM到AM和AM到PM特性以及大功率放大器的操作条件来预发射信号星座的振幅和相位。 此外，使用在不同频带下的预均衡器的预先存储的估计复抽头系数来预均衡发射RF无线电的振幅和组延迟变化。

公开(公告)号：US20020196844A1

公开(公告)日：2002-12-26

申请号：US09849687

申请日：2001-05-04

申请人： Caly Networks

发明人： Manouchehr S. Rafie ,  Jun Lu ,  Dengwei Fu ,  Tushar Shah

IPC分类号： H03H007/30

CPC分类号： H04L25/03038 ,  H04L2025/03477 ,  H04L2025/03668

摘要： A method for an adaptive equalization apparatus in a multiple-link hopping radio system includes hopping among a plurality of radio links to receive variable-length bursts of radio signals on the plurality of radio links and equalizing amplitude and phase variations of a slow channel for each radio link from a received burst on the radio link. Further, the method includes storing the estimated tap coefficients pertinent to each radio link and using the tap weights of the current burst of the radio link to reliably pre-compensate the channel amplitude and phase distortion of a next received burst on the radio link.

摘要翻译： 一种用于多链路跳频无线电系统中的自适应均衡装置的方法，包括多个无线电链路之间的跳变，以在多个无线电链路上接收无线电信号的可变长度脉冲串，并且使每个无线电链路的慢速信道的振幅和相位变化均衡 无线电链路上的接收突发。 此外，该方法包括存储与每个无线电链路相关的估计抽头系数，并且使用无线电链路的当前突发的抽头权重可靠地对无线电链路上的下一个接收突发的信道幅度和相位失真进行预补偿。