位置报告系统信号处理技术

位置报告系统（ＰＬＲＳ）是一种具有抗干扰能力和测距定位能力的传用无线系统，主要用于军事指挥自动化和Ｃ＾３Ｉ系统。为了满足系统同步和数据处理技术复杂、精度要求高和速度要求快的特点，使用了高速转输的数据信息处理方法和时分跳扩频控制技术。结合多种声表面波信号处理器技术，实现了快速精确同步组网和测距、定位、满足了系统的干扰要求。     

自动化技术与远动技术 自动控制、自动控制设备及系统

0628287用微控制器简化电池充电状态的测量〔刊,中〕/AbelRaynus//电子设计技术.—2006,(7).—108-112(C)0628288GPRS供水监控系统〔刊,中〕/孟庆龙//信息技术与信息化.—2006,(3).—51-52(D)0628289基于FPGA的诱饵时序控制设计〔刊,中〕/蒋晓//中国集成电路.—2006,15(5).—44-46(C2)文章介绍了诱饵时序控制的重要性,给出了利用Altera公司可编程逻辑器件实现诱饵时序控制的工作原理、设计思路、电路结构和仿真结果。结果表明,基于FPGA的电路设计实际可行。参40628290一种基于免疫的敏捷供应链形成算法〔刊,中〕/苏兆品//合肥工业大…     

雷达侦察系统信号处理技术探讨

分析了雷达侦察系统研制过程中信号处理所面临的各种难点,对雷达侦察系统信号处理机今后的发展方向从总体概念、组成架构和新的算法研究3个方面进行了阐述。     

自适应信号处理中的系统识别技术

自适应滤波中的许多问题可以用系统识别的观点来解决。建议采用递归的最大似然算法来估计信号模型中的参数。于是用参数估计来形成自适应无限冲激响应滤波器。讨论了若干例子,包括:自适应谱线增强、自适应解卷积、自适应噪对消和自适应延时估计。     

信号处理技术

信号处理是现代雷达最有生气的一个领域。它对提高雷达的检测能力、抗干扰能力、生存能力和环境适应能力等均有重大影响。其技术复杂,发展极快。我所在时频和空间滤波领     

信号处理技术

<正> 一、前言大规模集成电路技术(LSI)的发展,使得大规模数字信号处理技术可以廉价可靠地实现硬件化,这是以往的元件技术所做不到的。数字信号处理技术(DSP)是和计算机同时发展起来的技术领域,最初是作为数值计算和话音分析及合成等计算机模拟技术开展起来的。但是,随着LSI技术的发展,自从可以实时地处理以话音信号处理等为中心的快速处理以来,在通信领域得到了特别显著的发展。作为硬件技术,初期用数个集成     

信号处理技术

1.前言为了最大程度地提高相对于背景杂乱辐射和系统噪声的光学传感器的输出信号振幅,必须利用下述目标和背景特性的区别: 1.光谱辐射强度 2.空间(几何)特性 3.信号频率谱与噪声功率谱的关系本手册第二章讨论了目标和背景的光谱辐射强度,而第五章探讨了最佳滤光片的设计标准,本节介绍根据空间和时间变化进行的目标信号增强和背景鉴别技术,第2节将     

C-RAN系统中的软件基带信号处理技术

云无线接入网(C-RAN)是融合了集中化处理、协作无线电和实时云计算的无线接入网架构,不同于传统无线通信网络架构,其基带处理单元基于统一开放的软件无线电平台。本文从灵活性、实现复杂度、运算精确度、处理时延、吞吐量、资源利用率、能耗等方面对比C-RAN系统中的软件发送接收技术与传统基带信号处理技术,并以低密度奇偶校验码(LDPC)编码载波传输系统为典型案例,展示软件技术运算精确度高、性能优良,而传统技术处理时延低的特点。     

船闸自动控制系统技术及运用

文章总结了2022年南通某船闸电气改造工程经验,梳理了系统设计、软件及硬件配置、控制模式、运行工艺、上位机监控、数据库管理等要点,以期为提高船闸设备自动化运行管理水平提供参考。     

自动控制系统实验室中的抗干扰技术

文章主要讨论了调速实验装置干扰问题形成原因,干扰的表现及解决干扰的办法和实例.     

High-speed digital signal processing and control

An attempt is made to organize and survey recent work, and to present it in a unified and accessible form. The need for a new approach suitable for high-speed processing is discussed in the context of several applications in control and communications, and a historical perspective of the use of difference operators in numerical analysis is presented. The general systems calculus, based on divided-different operators is introduced to unify the continuous-time and discrete-time systems theories. This calculus is then used as a framework to treat the three problems of system state estimation; system identification and time-series modeling; and control system design. Realization aspects of algorithms based on the difference operator representation, including such issues as coefficient rounding and implementation with standard hardware, are also discussed     

Intelligent control of signal processing algorithms incommunications

In future telecommunications networks, an important role will be played by “intelligent control” techniques aimed at selecting and tuning signal processing (SP) algorithms. The authors first define the main problems of automatic control of SP algorithms; then, they propose a knowledge-based approach to carry out such a task. In the planning phase, a restricted set of algorithm sequences are selected. This set is used as a raw plan to be refined and corrected in the execution phase, based on quality tests on progressive results. In particular, the authors focus on the control strategies adopted and describe how expert knowledge is represented and applied to implement such strategies. As an example, the control of low-level image processing is detailed. Results on an image-compression application are also reported     

自动控制技术在播出系统的应用

２０世纪８０年代以来,根据电视台节目播出的需求,电视节目的自动播出系统不断发展变化。从时序控制、多功能控制、多频道的自动控制,发展到目前机械手系统、非线性系统、矩阵信号共享系统等组合方式的设备全自动控制系统。采用自动播出系统的一个目的是实现节目播出自动化,减轻工作人员的劳动强度。因此,自动控制技术在播出系统的应用,是其中的一个重点内容。自动控制技术的控制原理,主要是根据受控设备的控制协议,通过通信接口对受控设备进行控制。以下分为通信接口和设备控制两部分进行讨论。１ 通信接口自动播出系统的计算机需…     

Algebraic fields, signal processing, and error control

This survey paper is intended to integrate the subjects of digital signal processing and error control codes by studying their common dependence on the properties of the discrete Fourier transform. The two subjects are traditionally studied in different algebraic fields. Usually, the computations of digital signal processing are done using the complex number system, while the computations of error control codes are done using the arithmetic of Galois fields. We will argue that this dichotomy may be partly a historical accident. By viewing the two problems in the opposite number system, we shall find that there are parallels and that many techniques can be shared by the two subjects. The new material included within the paper is introduced in order to extend known techniques used in one algebraic field into another algebraic field where those techniques are not yet used.     

图像处理及镜头自动调控电路设计

设计了一种基于现场可编程门阵列(FPGA)EP3C25F256I7的图像处理及自动调控电路。该电路主要完成可见光图像的直方图均衡、中值滤波、十字叉叠加、快速自动调焦等图像处理及镜头调控功能。由于本文电路均采用高性能、低功耗的处理芯片,所以整个电路具有性能稳定、实时性高、体积小、功耗低等优点。     

SDH信号中DCME数据的检测处理技术

SDH信号中的虚容器VC-12是承载DCME数据的主要部分,文章通过分析简化其中各层数据的帧格式提出了一套可行的设计方案,用于初步实现SDH信号中DCME数据从前期检测到后期处理的流程,从而达到数据分析的目的.     

Ultrafast time-domain technology and its application in all-optical signal processing

In this paper, we review recent advances in ultrafast optical time-domain technology with emphasis on the use in optical packet switching. In this respect, several key building blocks, including high-rate laser sources applicable to any time-division-multiplexing (TDM) application, optical logic circuits for bitwise processing, and clock-recovery circuits for timing synchronization with both synchronous and asynchronous data traffic, are described in detail. The circuits take advantage of the ultrafast nonlinear transfer function of semiconductor-based devices to operate successfully at rates beyond 10 Gb/s. We also demonstrate two more complex circuits-a header extraction unit and an exchange-bypass switch-operating at 10 Gb/s. These two units are key blocks for any general-purpose packet routing/switching application. Finally, we discuss the system perspective of all these modules and propose their possible incorporation in a packet switch architecture to provide low-level but high-speed functionalities. The goal is to perform as many operations as possible in the optical domain to increase node throughput and to alleviate the network from unwanted and expensive optical-electrical-optical conversions.     

浅析当前工业自动化仪表与自动化控制技术

在现代技术的支撑下,工业生产中自动化程度越来越高,人工操作以及旧的操作方式必将会被全自动化所取代.当前,在工业生产中自动化仪表以及自动化控制技术应用日益广泛,并在提高生产方面发挥着重要的作用.如果说安全、高效、低能耗、高产能已经成为现代企业生产的特点,那么自动化仪表以及自动化控制将会是现代企业的标志.     

Digital signal processing strategies for active noise control

Over the last few years the increase in processing power available from digital signal processors has allowed active noise control to become a viable real-world technology. This paper reports on the development of a two channel active noise controller using low-cost DSP technology and presents illustrative results for a variety of real-world applications