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- digital beam model 波束数字化模型
- Using normal one beam model, an analytical formula of normal photoelectron diffraction (NPD) I-V curves is derived. 利用垂直单电子束(0,0,束)模型推导了光电子衍射I-V曲线的解析公式。
- A high performance digital beam forming (DBF) processor is designed and implemented by using ADSP-TS201S. 采用ADI公司的TigerSHARC系列第二代超高性能DSP芯片ADSP-TS201S设计制作了一个高性能的数字波束形成(DigitalBeamForming,DBF)处理器。
- Digital Beam Forming (DBF) technique has been widely researched in modern radar and communication systems. 数字波束形成(DBF)技术是现代雷达和通信领域的研究热点。
- Digital beam forming (DBF) is a soaring technology in muti-subjects area in last twenty years. 数字波束形成技术是近二十年来发展起来的多学科交叉的新兴技术。
- The equivalent beam model can reflect the nonlinear characteristics of compressing stiffness with change of loads acting on the damaged mem... 准确地反映了损伤所引起的弯曲与轴向耦合刚度的变化。
- This article introduces many kinds of ultrasonic transducers, transducer focus, and digital beam forming technology. 概述了各种超声医学成像换能器现状,以及换能器聚焦和数字波束成像技术。
- A simply-supported beam model was taken as the numerical analysis exemplification to demonstrate the effect of this damage identification method. 通过一简支梁模型的数值算例,验证了该损伤识别方法的有效性。
- By introducing damage factor into the model of elastic base beam, the non-elastic base beam model based on damage constitutive relation is proposed. 在弹性基础梁模型的基础上,通过引入一损伤因子,提出一类基于损伤本构的基础梁模型,并在一定条件下对该模型进行了求解和对比分析。
- A new digital beam forming (DBF) method is proposed. It combines the parallel delay LMS (PDLMS) algorithm and the field programmable gate array (FPGA). 采用高并行度的并行延时最小均方 (PDLMS)算法 ,用现场可编程门阵列 (FPGA)实现自适应数字波束形成模块。
- Inclined combined beam model with roof bolted are presented and solved,the expressions of support parameters of bolt are derived. 建立大倾角煤层回采巷道锚杆支护的倾斜组合梁模型,并进行解算,给出锚杆支护参数的表达式。
- Research methods: Establish double layer continuous viscoelastic beam model of floating slab track structure,the(vibration) respon. 浮置板轨道系统具有良好的减振性能,因而在工程中获得了广泛的应用。
- The affection of quantization error for SNR in digital beam forming (DBF) is analyzed on the perfect and normal conditions respectively. 摘要文章针对理想和非理想的不同条件,从理论上分析了量化误差对于数字波束合成(DBF)中输出信噪比SNR的影响。
- Furthermore,this paper discusses how to optimize the beam position by using the technology of Digital Beam Forming(DBF) in order to save time for scanning. 为了进一步节省扫描时间,还对如何利用数字波束形成( D B F) 技术实现优化进行了探讨。
- Based on the beam model of finite element method and with applied mathematical theory of statistics,a vibrational test method for identification of bridge damage is discussed. 基于有限元的梁模型,并且运用数理统计原理,探讨了桥梁损伤的一种振动检测方法,推导了相关的公式。
- With the development of signal processing technology, Digital Beam Forming (DBF) technique has been widely researched in modern radar and communication systems. 随着信号处理技术的发展,数字波束形成(DBF)技术在现代雷达和通信系统中的应用越来越广泛。 它利用数字信号处理的方法形成多个独立的波束。
- Two examples of application are also introduced. One is used for Digital Beam Forming(DBF) processor; another is for linear frequency modulation pulse compression. 文中还分别介绍了如何利用该模块构成一个4波束的数字波束形成处理器,和一个可以同时对4个波束的回波信号进行线性调频信号脉冲压缩的实时雷达信号处理器。
- This paper adopts adaptive digital beam forming(ADBF) method to reduce the influence of multi-path effects when the phased array radar detects the small skimming targets. 利用自适应数字波束形成法来降低相控阵雷达在探测低空掠海飞行小目标时多路径效应的影响。
- In the design process of digital beam forming (DBF) system, all kinds of modern electronic develop tools should be used in order to make the system operates in real time. 摘要数字波束合成(DBF)数据基带系统设计中,为了实现实时数据传输和处理功能,需要合理利用各种现代电子开发工具。
- The parameterized flexible-body dynamics model was established by adopting the discrete beam model to simulate the flexibility of robot and by bushing model to simulate the flexibility of robots joint. 来用离散梁模型来仿真机器人的柔性,轴套模型来仿真机器人关节的柔性,建立了参数化的柔体动力学模型。