共查询到20条相似文献,搜索用时 156 毫秒
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本文在FGS的基础上给出了一种基于MPEG-4的可扩展编解码算法的改进与实现,文中对该编解码算法的实现思路和过程做了详细的阐述,并最后给出了测试结果。 相似文献
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Mallat算法分析及C语言实现 总被引:1,自引:0,他引:1
本文利用C语言实现了一维离散小波变换算法。重点阐述了Mallat算法原理和实现步骤,对算法程序设计的几个关键问题进行了探讨,并给出了相关代码,算法代码均以函数形式给出便于移植和调用。C语言实现的结果和Matlab小波工具箱处理结果完全一致,程序具有良好的性能和实用性。 相似文献
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本文论述了计算机辅助逻辑模拟的基本方法,给出了门级逻辑模拟算法,并在IBMPC-286上编程实现。文中对算法进行了分析。给出算法的时间和空间复杂度。最后给出实例,实践表明,使用本文给出的算法可取得与实际吻合的模拟结果。 相似文献
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本文分析了基于CPLD进行功率因数角测量的基本原理,给出了硬件实现电路及VHDL源程序,并给出了仿真结果,进一步简化了电路,提高了系统的可靠性和灵活性,获得了很高的测相位精度和稳定性。 相似文献
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开发粗粒度可重构阵列之上的映射工具是把应用算法正确有效地映射到可重构硬件上,并使算法在可重构硬件上正确高效运行的关键之所在。因此,我们设计并实现了映射工具。本文介绍了映射工具的设计和实现过程,并给出了实现中的关键技术--布局。最后,本文还就几个测试程序给出了映射工具的映射结果。测试结果证明,布局算法的结
结果正确且优化,映射工具的设计合理,功能无误。 相似文献
结果正确且优化,映射工具的设计合理,功能无误。 相似文献
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本文设计实现了一个基于凌阳16位SPCE061A处理器的智能小车运动控制硬件电路,详细介绍了利用红外传感器实现智能小车的避障和循迹,并给出了实际的运行结果。 相似文献
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Reconfigurable computing tries to achieve the balance between high efficiency of custom computing and flexibility of general-purpose
computing. This paper presents the implementation techniques in LEAP, a coarse-grained reconfigurable array, and proposes
a speculative execution mechanism for dynamic loop scheduling with the goal of one iteration per cycle and implementation
techniques to support decoupling synchronization between the token generator and the collector. This paper also introduces
the techniques of exploiting both data dependences of intra- and inter-iteration, with the help of two instructions for special
data reuses in the loop-carried dependences. The experimental results show that the number of memory accesses reaches on average
3% of an RISC processor simulator with no memory optimization. In a practical image matching application, LEAP architecture
achieves about 34 times of speedup in execution cycles, compared with general-purpose processors.
Supported by the National Natural Science Foundation of China (Grant No. 60633050, 60621003) and the National High Technology
Research and Development Program of China (Grant No. 2007AA01Z06) 相似文献
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针对低信噪比(SNR)下时分数据调制二进制偏移载波调制信号(TDDM-BOC)的组合码序列盲估计问题,提出一种基于Sanger神经网络(Sanger NN)的新方法。首先将已分段的信号作为输入信号并利用Sanger NN提取各主分量的权值向量;然后通过其多次输入反复训练权值向量,直至权值向量达到收敛;最终利用各个权值向量的符号函数重建信号的组合码序列,实现TDDM-BOC组合码序列的盲估计。此外,采用最优变步长的方法来提高收敛速度。理论分析和仿真实验表明,Sanger NN可以实现-20.9~0 dB信噪比下TDDM-BOC信号组合码序列的盲估计,且其复杂度明显低于传统奇异值分解(SVD)法和自适应特征提取的在线无监督学习神经网络(LEAP);尽管Sanger NN收敛所需数据组数大于LEAP,但收敛时间明显少于LEAP算法。 相似文献
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Project LEAP (lightweight, empirical, antimeasurement dysfunction, and portable toolkit) is investigating tools and methods to support low-cost, empirically based software developer improvement. LEAP contains tools to simplify the collection of size and effort data. The collected data serves as input to a set of estimation tools. These tools can produce over a dozen analytical estimates of the effort required for a new project given an estimate of its size. To do this, they use various estimation methods such as linear, logarithmic, or exponential regressions. During project planning, the developer can review these estimates and select one of them or substitute a guesstimate based on his or her experience. The authors' study provides evidence that guesstimates, when informed by low-cost analytical methods, might be the most accurate method 相似文献
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LEAP is a runtime environment for deploying agents on a network of Java-enabled devices. It complies with FIPA international standards for multiagent systems. The Lightweight Extensive Agent Platform project is the first attempt to implement a FIPA agent platform that runs seamlessly on both mobile and fixed devices over both wireless and wired networks 相似文献
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基于单向函数的簇状传感器网络的密钥管理方案 总被引:1,自引:0,他引:1
在分析LEAP的基础上,结合簇状传感器网络的特点,提出了一种基于单向函数的簇状传感器网络的密钥管理方案.应用该方案,无线传感器节点所需预分配密钥数为1,同时通信开销小而且抗攻击性强. 相似文献