Smoothed Phase-Coded FMCW: Waveform Properties and Transceiver Architecture

Orthogonal Time Frequency Space Modulation -- Part II: Transceiver Designs

The fundamental concepts and challenges of orthogonal time frequency space (OTFS) modulation have been reviewed in Part I of this three-part tutorial. In this second part, we provide an overview of the state-of-the-art transceiver designs for OTFS systems, with a particular focus on the cyclic prefix (CP) design, window design, pulse shaping, channel estimation, and signal detection. Furthermore, we analyze the performance of OTFS modulation, including the diversity gain and the achievable rate. Specifically, comparative simulations are presented to evaluate the error performance of different …

流体天线系统的分集与编码调制设计

On the Diversity and Coded Modulation Design of Fluid Antenna Systems

本文研究流体天线系统在通用衰落信道下的中断性能，提出线性预测方案克服调度延迟导致的分集损失，还设计了低复杂度的空时编码调制方案实现最大分集，验证了流体天线的可行性。

使用可重构智能表面的编码孔径雷达成像

Coded Aperture Radar Imaging Using Reconfigurable Intelligent Surfaces

本文研究利用单个收发器与可重构智能表面（RIS）的编码孔径雷达成像，通过投影梯度下降设计RIS相移并结合压缩感知，从单天线观测中恢复点散射体和扩展目标雷达场景。

CDMA与非均匀复用：MIMO雷达波形的动态范围

CDMA and Non-Uniform Multiplexing: Dynamic Range in MIMO Radar Waveforms

本文比较了多种MIMO雷达复用技术，通过仿真评估发射机数量增加对系统动态范围的影响及可扩展性，为实际应用中的复用策略选择提供了权衡见解。

Sensing using Coded Communications Signals

A key challenge for a common waveform for Integrated Sensing and Communications (ISAC) - widely seen as an attractive proposition to achieve high performance for both functionalities, while efficiently utilizing available resources -- lies in leveraging information-bearing channel-coded communications signals (c.c.s) for sensing. In this paper, we investigate the sensing performance of c.c.s in (multi-user) interference-limited operation, and show that it is limited by sidelobes in the range-Doppler map, whose form depends on whether the c.c.s modulates a single-carrier or OFDM waveform. While…