Design of 155Mbps Millimeter-wave QAM Demodulator

FONT face; Verdana; LI Zhi-yong; LI Wen-duo; FONT

您当前的位置：

首页 >

文章列表页 >

Design of 155Mbps Millimeter-wave QAM Demodulator

更新时间：2025-07-16

- Design of 155Mbps Millimeter-wave QAM Demodulator
- Acta Electronica Sinica Vol. 38, Issue 6, Pages: 1419-1424(2010)
- 作者机构：
  
  （中国电子科技集团公司第五十四所，）,石家庄,050081
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN914.332
- Published：2010
- 稿件说明：
移动端阅览
FONT face, Verdana, LI Zhi-yong, et al. Design of 155Mbps Millimeter-wave QAM Demodulator[J]. Acta Electronica Sinica, 2010, 38(6): 1419-1424.
DOI：

FONT face, Verdana, LI Zhi-yong, et al. Design of 155Mbps Millimeter-wave QAM Demodulator[J]. Acta Electronica Sinica, 2010, 38(6): 1419-1424. DOI：

摘要

<FONT face=Verdana>针对数字毫米波通信设计了一个155Mbps QAM解调器.为比较大容量毫米波通信中峰均比、解调门限和带宽对系统性能的影响，提出了一个新的参量——信号资源优化系数，根据4~1024 QAM的值优选了QPSK、16QAM和64QAM作为调制方式.研究了AGC和载波泄露对解调性能的影响；根据小滚降系数奈奎斯特升余弦信号的数字预滤波原理，提出了一种零抖动定时误差检测方法；研究了PFD载波恢复算法在解调高阶QAM信号时出现的星座点捕获错误问题，提出了根据星座点功率自适应调整捕获门限的改进PFD算法.本设计已成功应用于一毫米波链路，算法工作稳定，在比特误码率为1E-8时，解调损失小于2dB.

Abstract

<FONT face=Verdana>A 155Mbps QAM demodulator is designed for digital millimeter-wave communication. A novel parameter named Signal Resource Quantity (SRQ) incorporating peak and average power ratio

demodulation threshold and bandwidth was introduced to find out the best order of QAM for high-speed millimeter-wave communication. The 4~64QAMs win in 4~1024QAMs according to their SRQs. How gain deviation of AGC and carrier leakage affect the demodulation performance were studied. A zero-jitter timing recovery detector was implemented by the theories of pre-filtering Nyquist raised sine signal with small roll-off factor. An improved PFD carrier recovery algorithm with adaptive power threshold was proposed to avoid wrongly capturing constellation points in the case of high-order QAM. The design has been applied to a millimeter-wave link successfully

and the algorithms work robustly. The demodulation loss was less than 2dB when the BER was equal to 1E-8.

关键词

Keywords

references

Views

1549

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Design and Testing Method of A Miniaturized LTCC Filter with High-Selectivity and Low-Loss for 6G (B5G) Millimeter-Wave Communication

Millimeter-Wave On-Chip Dual-Mode Transmission Line with Low Insertion Loss and Wide Band Based on Composite Right-/ Left-Handed Theory

Energy-Efficient Sleep-Mode Based on Deep Reinforcement Learning for Cell-Free mmWave Massive MIMO Systems

Millimeter-Wave Cruciform Multibeam Array Antenna Based on Shared-Cavity Rotman Lens

Related Author

LI Wen-jun

LIU Huan

LI Chen

CAI Jie-ding

LUO Xin-jiang

HU Yuan-yun

YOU Bin

XU Kui-wen

Related Institution

Jiaxing Glead Electronics Co., LTD.

College of Electronics Information, Hangzhou Dianzi University

College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications

College of Electronic and Information Engineering, South China University of Technology

School of Communication and Information Engineering， Chongqing University of Posts and Telecommunications

⁰