• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >On Trading the Spreading Gain With the Coding Rate and Its Application to GNSS Data Component Design
【24h】

On Trading the Spreading Gain With the Coding Rate and Its Application to GNSS Data Component Design

机译：以编码率交易扩展增益及其在GNSS数据组件设计中的应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The ubiquity of global navigation satellite system (GNSS)-based positioning and timing services is often frustrated by the necessity to operate in harsh environments, where the carrier-to-noise ratio is low, and hence, decoding of navigation data and even tracking of an acquired symbol are difficult. We consider the possibility of improving the decoding performance of the GNSS data component by trading the spreading gain against the coding rate. The rationale is that spreading codes can be seen as a form of repetition coding that can be (at least partially) replaced by more robust coding forms to improve robustness to (any form of) noise. This is true both for the classical additive white Gaussian noise channel case and for more realistic GNSS channel formats severely degraded by multiple access interference and near-far effects. By bringing results on finite-block-length channel capacity and coding rates from information/communication theory to the GNSS domain, we are able to establish and discuss the expected performance gap, as well as the limits of such tradeoff.
机译：基于全局导航卫星系统（GNSS）的定位和定时服务的无处不在通过在恶劣环境中运行的必要性令人沮丧，其中载波到噪声比率低，因此对导航数据进行解码，甚至跟踪获得的符号很难。我们考虑通过对编码率交易扩展增益来提高GNSS数据组件的解码性能的可能性。基本原理是扩散代码可以被视为重复编码的形式，其可以（至少部分地）被更稳健的编码形式更换，以改善对（任何形式）噪声的鲁棒性。这对于经典添加剂白色高斯噪声通道箱和更现实的GNSS信道格式，这两者都是如此，通过多次访问干扰和近远的效果严重降级。通过从信息/通信理论到GNSS域的有限块长度信道容量和编码率的结果，我们能够建立和讨论预期的性能差距以及这种权衡的限制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号