关于微弱信号检测的研究论文

吕进.施 秧.刘辉军.赵鑫祥.庄松林. 基于NIR的茶叶成分检测仪的设计与实现, 光电工程,2010年,Vol37(1):82-87, 吕进.赵鑫祥.刘辉军.施秧.张建庭. 基于近红外光谱的茶叶成分检测仪的软件研制，仪器仪表学报,, , . 周扬，吕进，刘铁兵，施秧，戴曙光，小波域高斯混合模型方差估计近红外降噪方法，光电工程,2011年,Vol38(8):96-100 胡小邦.吕进等，基于近红外透射光谱的黄酒酒精度、酸度检测模型研究，光电工程,2010年,Vol37(10):122-127 张建庭,吕进等. 基于聚类分析的局部建模方法在茶叶近红外光谱分析模型中的应用. 理化检验（化学分册）.2010(2) 张洪军.吕进. 多普勒全场测速技术的进展[J]，力学进展，2007. (03): 428-442 施秧.吕进. 双通道红外光谱微弱信号检测系统设计.激光与红外. 2007. 37 (11). 刘辉军,吕进等. 基于遗传算法的波长选择方法在绿茶近红外光谱分析模型中的应用.分析测试学报.2007,26(5). 刘辉军,吕进等. 茶叶中茶多酚含量的近红外光谱检测模型研究.红外技术. 2007,29(7) 吴 博.黄咏梅.毛谦敏.吕 进.钟罩式气体流量标准装置自动检定系统的设计与实现，中国计量学院学报，第17卷第4期,2006年12月， 吕进，毛谦敏等 移动式现场定量包装商品净含量检定系统的研制,《计量学报》，2006年10月；第27卷第4期, 吕进, 刘辉军.林敏.陈华才.庄松林，近红外光谱分析技术在茶叶成份检测中的研究，全国第一届近红外光谱学术会议论文集，中国石化出版社，ISBN7-80229-199-2,., 吕进，林敏，庄松林，基于正交小波包的茶叶近红外光谱特性分析，光谱学与光谱分析第25卷第11期, , 2005年11月 (SCIISI Document Delivery No.: 990NM) .芦永军、陈华才、吕进, 茶多酚中咖啡因的近红外光谱分析，光谱学与光谱分析 第25卷第8期,1243-1245, 2005年8月 (SCIISI Document Delivery No.: 960YO) 芦永军，陈华才，吕进, 陈星旦. 茶多酚中总儿茶素的近红外光谱分析[J].分析化学，第33卷第6期,2005年6月, (SCIISI Document Delivery No.: 943OC) LU Jin, LIN Min, ZHENG Ying-jun, LIU Hui-jun, Quality Parameter Modeling in Soft Sensing Based on Near Infrared Spectrum, Proceedings of 3rd International Symposium on Instrumentation Science and Technology, Aug. 18-22，2004，Xi’an, China,（ISTP收录） 吕进, LDV标定装置校准盘动态半径不确定度的测量方法,《计量学报》，2001年；第22卷第2期：（EI 01386656277） 吕进，殳为群. Uncertainty Investigation about the LDV Calibration Facility.《仪器仪表学报》，2000年；第21卷第6期：(2001年9月评为浙江省自然科学优秀论文二等奖) Yu Hou and Jin Lu, Theory and application of active set method in evaluation of form tolerance, Measurement (Journal of the International Measurement Confederation),, , , 1996 侯宇，吕进，三坐标测量机上形状误差评定的理论与方法，《仪器仪表学报》，, , 1996年12月，

2FSK Signal, Modulation and Modem二进制频移键控信号, 调制和解调Does a communication signal have fingerprint characters? This paper discusses the existence probability of fingerprint characters of communication signals, then analyses fingerprint characters of 2FSK signals,and extracts partial fingerprint characters of 2FSK signals.人有表示个体属性的指纹特征 ,无线电通信信号 (下称信号 )是否存在描述个体电台的电子“指纹”特征 (下称“指纹”特征 )呢 ?文中分析了信号“指纹”特征存在的可能性 ,并以 2FSK信号为例 ,论述了 2FSK信号应具有的“指纹”特征 ,同时提取了其中部分“指纹”特征。According to the characteristics of 2FSK signal and 2PSK signal, a new method based on weak signal detection by Duffing chaotic oscillator to detect 2FSK signal and 2PSK signal is presented.根据Duffing混沌振子微弱信号检测方法进行研究的基础上,根据2FSK信号和2PSK 信 号的特点,提出了一种2FSK、2PSK信号的检测的新方法。To acquire the information of railway binary frequency-shift keying(2FSK)signal s upper and down side frequencies and base low-frequency with high accuracy in real time,a novel frequency detection algorithm compatible with China-made system and France UM71 system was proposed.为实时高精度获取铁道二进制频移键控信号的上、下边频和基带低频信息,提出一种 可兼容国产制式和法国UM71制式的频率检测新方法。The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM,FM,SSB,2ASK,2FSK, 2PSK,2QPSK.通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。It emphasizes on 2FSK modem of locking phase loop frequency mixing, hardware and software of addressing control of single-chip computer-AT89C51.介绍了一种基于单片机寻址控制的有线电视收费系统,重点对系统应用锁相频率合成技术的2FSK调制和解调、单片机AT89C51寻址控制的硬件和软件进行了分析,还对系 统利用PIN管宽带工作特点对高频电视信号进行关断和系统的抗干扰措施进行了一定的介绍。 The 308 MHz/315 MHz/418 MHz/ MHz low power FSK Superheterodyne Receiver adopts high integrated,low power,CMOS Superheterodyne RF receiver chips in MAX7042,with a sensibility range from-110 dBm to-109 dBm,receiving a FSK data which speed up to 66 kbps(NRZ)(33 kbps Manchester code). 所设计的308 MHz/315 MHz/418 MHz/ MHz低功耗FSK超外差式接收电路,采用MAX7042高集成度、低功耗,CMOS型超外差式射频(RF)接收芯片,灵敏度为-110~-109 dBm,接收频移键控(FSK)数据速率可达66 kbps(NRZ)(33kbps曼彻斯特编码); Through the experiments with two systems,which based on two kinds of the binary system frequency shift keying(2FSK) modems,the algorithm's validity is tested. 以两种二进制频移键控(binary system frequency shift keying,2FSK)调制 解调器搭建系统进行实验,验证了该方法的有效性。 The working principle,algorithm analysis and software design method of a simplified 2FSK modem based on DSP which is a kind of programmable chip are introduced in this article. 介绍了简易二进制频移键控(2FSK) 调制解调器的工作原理、算法分析以及基于可编程器件DSP的软件设计方法。 The automatic fire alarm system is discussed which consists of a iron-type smoke detector NC14468, a microcontroller 8051 and a radio frequency transceiver nRF401. Because of nRF401 being introduced into which adopts the radio communication technology and the FSK technology , the system is improved increasingly in the performances , such as real-time function and high responsibility. 讨论了用 MC14468 离子型烟雾检测报警器、单片机 8051、nRF401 单片射频收发器构成的火灾自动报警系统。 由于引入了无线通信技术和 FSK(频移键控) 调制解调技术为核心的 nRF401 射频收发器,使系统的性能大大提高,尤其是使系统报警更具实时性和可靠性。 Through the experiments with two systems,which based on two kinds of the binary system frequency shift keying(2FSK) modems,the algorithm's validity is tested. 以两种二进制频移键控(binary system frequency shift keying,2FSK)调制解调器搭建系统进行实验,验证了该方法的有效性。 This dissertation, basing on simulation, makes a deep research on simulating signal of GMSK (Gaussian filtered Minimun Frequency Shift Keying) baseband modulation and demodulation in AIS (Automatic Identification System) equipment. The technology related in the following makes the modulation and demodulation of baseband signal into realization by TI DSP, at the same time, provides a key technique to develop AIS system inland. 着重对自动识别系统(AIS-Automatic Identification System)设备的高斯滤 波最小频移键控(GMSK-Gaussian filtered Minimum Frequency Shift Keying)基带 调制解调信号进行了仿真研究,并在仿真的基础上,在TI的DSP上实现了基带信号的调 制解调,为国内研制AIS系统储备了关键技术。 Moreover,based on the designed fiber grating and the technology of wavelength division multiplexing,a frequency shift keying radio-over-fiber communication system is suggested,and the proposed scheme may be taken as one of the candidates for the next generation high-speed and large-capability radio-over-fiber system. 同时基于所设计的光纤光栅和波分复用技术,提出了一种频移键控光纤无线通信系统Radio Over Fiber系统,为下一代的高速大容量的光纤无线通信系统系统提供一种可行的备选解决方案。 By using the service work that the telecommunication bureau provides caller information to subscriber (inserts caller number and other relevant information between the first and the second ringing of the subscriber terminal) , this scheme sets up a platform using binary frequency shift keying (FSK) decode technique on the subscriber side, receives the caller (reporting side) telephone number, then through the data base in the service equipment, finds the caller (reporting side) material and information, and chooses the corresponding police action plan. 利用电信局对用户提供主叫信息的服务业务 (在对用户终端的第一次和第二次振铃之间 ,插入主叫方号码以及其他有关信息 ) ,在用户终端设置一种采用二进制频移键控 (FSK)解码技术的平台 ,接收主叫 (报警方 )电话号码 ,并通过服务器里 的数据库 ,查询到主叫(报警方 )的资料 ,然后做出相应的处警方案评价 添加词条 短句来源 For the conventional modulation and demodulation of Minimum Frequency Shift Keying(MSK), the new models for modu-lation and demodulation on digital MSK based on VHDL are developed. 针对传统的最小频移键控(MSK) 的调制解调方式,提出一种基于甚高速硬件描 述语言(VHDL)的数字式MSK调制解调模型。 The conception,classification,research status and system structure are presented in this paper,also it presents a new space-time coded cooperation based on space-time frequency keying,and finally analyzes its performance. 介绍了协作分集技术的基本概念、分类、研究现状以及系统结构,提出了由空时频移键控设计的空时编码协作分集方式,并分析了其性能。 Combining the advantages of space-time block codes and frequency keying, space-time frequency keying (ST-FSK), which did not require any channel state information at the transmitter and the receiver, could adopt the non-coherent ML detector under the Rayleigh fading channels [1]. 空时频移键控(ST- FSK)结合了空时分组码和频移键控的优点,在瑞利衰落信道条件下无需信道信息,可采用非相干的最大以然(ML)检测器。 In the scheme, FSK-FDM technique is used in sub-carrier modulation, and the EDFA’s supervisory information is transmitted by optical intensity modulation. 该方案利用频移键控 频分复用 (FSK FDM)技术进行声频副载波调制 ,通过光强度调制实现远程在线EDFA监控信息随主信号的传输。 There are three basic types of digitally modulated signal: MASK, MPSK and MFSK. 数字调制信号分三种基本类型：多进制幅度键控MASK、多进制相移键控MPSK和多进制频移键控MFSK。 For improving the baud rate of system, this text adopts the GMSK (Gauss in Filtered Minimum Shift Keying) modulation method to replace ASK (Amplitude Shift Keying) modulation method of current IFCNSS. 为提高系统的传输速率,本文采用GMSK(Gaussian Filtered Minimum Shift Keying高斯滤波最小频移键控)调制方式来代替目前“安全通信网”中的ASK(Amplitude Shift Keying幅移键控)调制方式。

If the signal-to-noise ratio at the input terminal of signal processing system is bad, or even buried in the noise, low noise electronic design will not be sufficient to detect the signalWeak signal detection allpies modern electronics and signal processing methods to extract useful signal from the noise, the key of which is to reduce the noise and recover, increase and extract useful signal. Related detection technology is a technique based on the relativity can utmostly reduce the bandwidth and the noise and test the weak signal through the calculation of autocorrelation or paper will discuss simply the principle of weak signal detection based on the improvement of signal-to-noise ratio in the signal processing system. It puts an emphasis on the principle, method and application to detect weak signal applying relativity detection.人工翻译，请参考