带扫多进制PSK（BS-M-PSK）调制及收发器设计
Band-Sweeping M-ary PSK (BS-M-PSK) Modulation and Transceiver Design
摘要：
信道估计是无线通信系统接收机设计者遇到的主要问题。对于移动接收机，系统遇到的衰落信道通常是时变的。此外，信道的频率响应对于城市环境是频率选择性的，在城市环境中，与符号持续时间相比，延迟扩展相当大。信道估计对于均衡接收数据和消除由色散信道引起的符号间干扰（ISI）是必不可少的。因此，传统的收发器插入已知值的导频符号，并检测导频符号中的变化，以便推导出信道响应。因为这些导频不携带信息，所以降低了系统的吞吐量。本文提出了一种新的调制方案。该技术依赖于使用没有固定频率的载波信号，载波音扫描专用于传输的频带，并检测频带内的传递函数增益。通过周期性斜坡信号进行频率调制（FM）的载波信号通过信道传递函数变为幅度调制（AM），并且因此，接收机获得对信道响应的估计，而不使用降低系统吞吐量或数据率的导频。载波信号本身充当动态频域导频。该技术仅适用于恒定能量系统，因此它适用于PSK收发器。提出的调制技术的数学公式，收发器的设计和性能分析。
英文摘要：
Channel Estimation is a major problem encountered by receiver designers for wireless communications systems. The fading channels encountered by the system are usually time variant for a mobile receiver. Besides, the frequency response of the channel is frequency selective for urban environments where the delay spread is quite large compared to the symbol duration. Estimating the channel is essential for equalizing the received data and removing the Inter-Symbol Interference (ISI) resulting from the dispersive channel. Hence, conventional transceivers insert pilot symbols of known values and detect the changes in it in order to deduce the channel response. Because these pilots carry no information, the throughput of the system is reduced. A Novel modulation scheme is presented in this work. The technique depends on using a carrier signal that has no fixed frequency, the carrier tone sweeps the band dedicated for transmission and detects the transfer function gain within the band. A carrier signal that is Frequency Modulated (FM) by a periodic ramp signal becomes Amplitude Modulated (AM) by the channel transfer function, and thus, the receiver obtains an estimate for the channel response without using pilots that decrease the systems throughput or data rate. The carrier signal itself acts as a dynamic frequency domain pilot. The technique only works for constant energy systems, and thus it is applied to PSK transceivers. Mathematical formulation, transceiver design and performance analysis of the proposed modulation technique are presented.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
