共查询到20条相似文献,搜索用时 687 毫秒
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基于DSP Builder的14阶FIR滤波器的设计 总被引:1,自引:0,他引:1
数字滤波器在数字信号处理的各种应用中有着广泛的应用。数字滤波器既可以是有限长单脉冲响应(FIR)滤波器也可以是无限长单脉冲响应(IIR)滤波器。通过两者特点的比较,按照Matlab/Simulink/DSP Builder/QuartusⅡ的流程,设计了一个14阶的FIR滤波器,并进行了相关仿真,提出了一种在实际硬件中测试的方法,从而验证了采用DSP Builder实现滤波器设计的硬件化的独特优势。 相似文献
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对基于Visual DSP++实现无限脉冲响应数字滤波器(IIR)技术进行研究,分析了无限脉冲响应数字滤波器的原理和算法,给出了IIR数字信号处理在Visual DSP++软环境的实现方法,该方法具有一定的工程应用价值。 相似文献
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IIR数字滤波器的优化设计和DSP实现 总被引:3,自引:0,他引:3
首先叙述了直接Ⅱ型IIR(无限冲击响应)数字滤波器能够克服使用定点DSP实现IIR数字滤波器时引起的输入数据的溢出问题;然后利用MATLAB软件生成滤波器的输入数据和系数,进行相应的数据压缩处理,并生成仿真波形;最后给出了用DSP语言实现直接Ⅱ型结构IIR数字滤波器的完整程序、仿真结果,同时对仿真结果进行了分析、比较。 相似文献
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The article describes a model representation of radar probing data in form of a mixture of background and target samples, which is the sum of two random variables with very different parameters. For model development we research the behavior of the central moments of the distribution mix without assuming the distribution law form. An example it is described the detection of the signal at the output of compression system of chirp ionosonde. 相似文献
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解决IP网QoS问题是目前通信领域的研究热点之一.虽然研究已经取得了一定的进展,但人们对于IP 网QoS本身的含义及相关的问题还有着不同的理解.本文将从IP网QoS的定义入手讨论相关的一些问题以及解决IP网QoS问题所做的各种努力. 相似文献
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《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1968,56(6):1024-1032
Assuming that visual responses are due to the action of particles on the membrane of the visual cells, the stochastic variability of the response should be a function of the number of particles producing it. Quantitative predictions can be made with the aid of a model proposed in previous articles. It is found that responses produced in visual cells of Limulus by absorption of a single photon have the stochastic properties which would be expected if the response to one photon were brought about by 25 particles. It is concluded from this that the processes leading to visual responses produce multiplication of particles. The effects of temperature and of metabolic poisons suggest that these processes are of chemical nature. 相似文献
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对影响镍镀层内应力的因素做了介绍和分析,提出了对收缩应力的一种解释,提供了排除这些因素影响的方法,指出重视镀液的管理是减少各种影响内应力因素的主要办法。 相似文献
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罗晓羽 《信息技术与标准化》2008,(6):37-39
论述了推进电子行业标准制修订项目计划管理信息化的必要性.并提出了具体措施;详细介绍了电子行业标准制修订项目计划管理数据库的设计思路和实现方法.阐述了对后续工作的几点思考. 相似文献
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By means of exact conformal mapping method we have defined character of dependence of squares amounts of angular part of film
element on angled part dimension. We propose relations, approximating obtained dependence. Calculation results and experimental
researches of large-scale models are represented. 相似文献
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Moshrefzadeh R.S. Radcliffe M.D. Lee T.C. Mohapatra S.K. 《Lightwave Technology, Journal of》1992,10(4):420-425
The temperature dependence of refractive index of polymer films was determined for a number of slab waveguides by a grating coupling method. This dependence was examined as a function of parameters such as molecular weight and glass transition temperature of the polymer. Temperature-induced changes in N TE-N TM , N being the effective index, were studied systematically for different slab waveguide compositions. It is shown that with proper device design and choice of polymeric materials, thermal effects can be reduced 相似文献
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水的光学特性对光学成像质量有着重要的影响,水对光的吸收、散射作用可造成光在水介质传播中的衰减,本文就水的光学特性及其对水下光学成像质量的影响进行了分析,以为成像系统在水下的应用提供基础的理论依据。 相似文献