Method and apparatus for tracking the frequency and phase trajectory of a randomly time-varying signal

• 1. 一种迅速，低噪声地将信号的频率和相位锁定于外加信号的频率和相位上的伺服装置 [P] . 中国专利： CN1033433A . 1989-06-14
• 2. 一种随机单脉冲采样在相位敏感OTDR传感中恢复信号及频率的方法 [P] . 中国专利： CN109951223B . 2021.09.21
• 3. METHOD AND APPARATUS FOR TRACKING THE FREQUENCY AND PHASE TRAJECTORY OF A PRNDOMLY TIME -VARYING SIGNAL [P] . IL118874A . 1998-08-16

  机译： 跟踪时变信号的频率和相位轨迹的方法和装置

• 4. Method and apparatus for mobile broadcast and multicast using randomized transmit signal phases in a single frequency network [P] . 美国专利： US8243637B2 . 2012-08-14

  机译： 用于在单频网络中使用随机发送信号相位进行移动广播和多播的方法和装置

• 5. Method and apparatus for mobile broadcast and multicast using randomized transmit signal phases in a single frequency network [P] . 美国专利： US2010302984A1 . 2010-12-02

  机译： 用于在单频网络中使用随机发送信号相位进行移动广播和多播的方法和装置

• 1. Tracking a Time-Varying Number of Targets with Radio-Frequency Tomography [J] . Xiao He肖贺, Liu Hang刘航, Xu Jun徐俊, 天津大学学报（英文版） . 2015,第004期
• 2. Detection Accuracy of the Temporary State of Complex Signals Using Phase-Frequency Tracking Methods with Equilibrium and Non-equilibrium Processing [C] . Alexander Kochegurov, Elena Kochegurova, Natalya Kupina Advances Computer Systems Conference . 2015
• 3. Output feedback tracking control of nonlinear time-varying systems by trajectory linearization. [D] . Huang, Rui. 2007
• 4. The Tracking Study: Description of a randomized controlled trial of variations on weight tracking frequency in a behavioral weight loss program [O] . Jennifer A. Linde, Robert W. Jeffery, Scott J. Crow, -1
• 5. Analysis of phasor measurement method in tracking the power frequency of distorted signals [O] . Agha Zadeh Ramin, Ghosh Arindam, Ledwich Gerard, 2010
• 6. Method and apparatus for receiving and tracking phase modulated signals [R] . Villarreal, S., Lenett, S. D., Kobayashi, H. S. 1984

• 1. QPSK DS-CDMA System over Rayleigh Channel with a Randomly-Varying Frequency Narrow-Band Interference: Frequency Tracking Analysis [J] . Aloys N. Mvuma . 无线传感网络（英文） . 2010,第3期
• 2. BACKGROUND： Vibrio vulnifi cus inside the body could activate the NF-!B signaling pathwayand initiate the inflammatory cascade. The lung is one of the earliest organs affected by sepsisassociated with acute lung injury. High mobility group protein B1 （HMGB1） is an important late-actingpro-infl ammatory cytokine involving in the pathophysiology of sepsis. It is also involved in the injuryprocess in the lung, liver and intestine. There has been no report on the involvement of HMGB1 inVibrio vulnifi cus sepsis-induced lung injury.METHODS： Sixty rats were randomly divided into a normal control group （group A, n=10） anda Vibrio vulnificus sepsis group （group B, n=50）. Sepsis was induced in the rats by subcutaneousinjection of Vibrio vulnificus （concentration 6×108 cfu/mL, volume 0.1 mL/100g）） into the left lowerlimbs. The rats in group B were sacrifi ced separately 1, 6, 12, 24, and 48 hours after the infection.Their lungs were stored as specimens, lung water content was measured, and lung pathology wasobserved under a light microscope. The expressions of the HMGB1 gene and protein in the lungswere detected by RT-PCR and Western blot. Data were analyzed with one-way analysis of variance（ANOVA） and the LSD method for pair-wise comparison between the two groups. P〈0.05 wasconsidered statistically signifi cant.RESULTS： Compared to group A （0.652±0.177）, HMGB1 mRNA expression in the lungs ofgroup B was signifi cantly higher at 0 hour （1.161±0.358, P=0.013）, 24 hours （1.679±0.235, P=0.000）,and 48 hours （1.258±0.274, P=0.004） （P〈0.05）, and peaked at 24 hours. Compared to group A（0.594±0.190）, HMGB1 protein expression at 6 hours （1.408±0.567, P=0.026） after infection wassignificantly increased （P〈0. 05）, and peaked at 24 hours （2.415±1.064, P=0.000） after infection.Compared to group A （0.699±0.054）, lung water content was significantly increased at 6 hours（0.759±0.030, P=0.001）,12 hours （0.767±0.023, P=0.000）, 24 hours （0.771±0.043, P=0.000） and 48hours （0.789±0.137, P=0.000） after infection （P〈0.05）. Compared to group A, pathological changesat 12 hours in group B indicate marked pulmonary vascular congestion, interstitial edema andinfl ammatory infi ltration. Alveolar cavity collapse and boundaries of the alveolar septum could not beclearly identifi ed.CONCLUSION： Vibrio vulnifi cus sepsis can lead to injury in rat lungs, and increased HMGB1expression in lung tissue may be one of the mechanisms for injury from Vibrio vulnifi cus sepsis. [J] . Qiao-meng Qiu ,Zhong-wang Li ,Lu-ming Tang . 世界急诊医学杂志(英文) . 2011,第4期
• 3. Drive Signal Frequency-Lock Method Based on 90° Phase Shift for Quartz Angular-Rate Sensor [J] . 廖兴才 ,孙雨南 ,唐琼 . 北京理工大学学报：英文版 . 2005,第1期
• 4. Blind carrier frequency estimation for phase shift keying signals in low signal to noise ratio [J] . Wang Xiaofeng ,Zhang Guoyi ,Tian Runlan . 强激光与粒子束 . 2015,第10期
• 5. 基于相位的结构损伤过程频率跟踪方法研究 [C] . 徐向泽 ,纪国宜 . 第十届全国振动理论及应用学术会议 . 2011
• 6. 考虑风电随机性的时变PO-PID负荷频率控制方法 [A] . 马艺菡 . 2021