-
code
Wireless Sensor Networks (WSNs) are comprised of thousands of sensor nodes, with restricted energy, that cooperate
to accomplish a sensing task. Various routing Protocols are designed for transmission in WSNs. In this
paper, we proposed a hybrid routing protocol: Zonal-Stable Election Protocol (Z-SEP) for heterogeneous WSNs.
In this protocol, some nodes transmit data directly to base station while some use clustering technique to send
data to base station as in SEP. We implemented Z-SEP and compared it with traditional Low Energy adaptive
clustering hierarchy (LEACH) and SEP. Simulation results showed that Z-SEP enhanced the stability period
and throughput than existing protocols like LEACH and SEP.
- 2013-12-21 12:15:13下载
- 积分：1
-
GA
Genetic algorithm implementation
- 2014-01-03 13:07:27下载
- 积分：1
-
dea
在人们的生产活动和社会活动中常常会遇到这样的问题：经过一段时间之后，需要对具有相同类型的部门或单位（称为决策单元）进行评价，其评价的依据是决策单元的“输入”数据和“输出”数据，输入数据是指决策单元在某种活动中需要消耗的某些量，例如投入的资金总额，投入的总劳动力数，占地面积等等；输出数据是决策单元经过一定的输入之后，产生的表明该活动成效的某些信息量，例如不同类型的产品数量，产品的质量，经济效益等等．再具体些说，譬如在评价某城市的高等学校时，输入可以是学校的全年的资金，教职员工的总人数，教学用房的总面积，各类职称的教师人数等等；输出可以是培养博士研究生的人数，硕士研究生的人数，大学生的人数，学生的质量（德，智，体），教师的教学工作量，学校的科研成果（数量与质量)等等．根据输入数据和输出数据来评价决策单元的优劣，即所谓评价部门（或单位）间的相对有效性．(In people s productive activities and social activities often encounter such a problem: After a period of time, need to have the same type of departments or units (referred to as the decision-making unit) to evaluate the basis for his assessment in decision-making unit "input "Data and" output "data, input data refers to the decision-making unit in certain activities that need to consume certain amount of, for example, the total funds invested, the investment of the total workforce number, area, etc. output data through the decision-making unit After a certain input to produce the show the effectiveness of the activity of certain amount of information, such as different types of product quantity, product quality, economic efficiency and so on. Be more specific, said, for example, in evaluating a city s institutions of higher learning, the input can be the year the school funds, the total number of faculty, teaching a total area of space, all kinds of titles the number of teachers, etc)
- 2009-09-10 13:09:25下载
- 积分：1
-
MATLABch10
matlab chapter 2 codes
- 2009-10-17 14:33:48下载
- 积分：1
-
qpsksystem_SJSU_mdl
QPSK modulation system with recover loops(This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.)
- 2009-05-15 11:05:08下载
- 积分：1
-
inttst_estimator
快速、精确频率估计算法，噪声情况下语音信号频率估计(Fast, accurate frequency estimation algorithm, the case of speech noise frequency estimation)
- 2011-09-14 21:56:16下载
- 积分：1
-
convertidor
three-phase converter using matlab simulink
- 2014-02-18 05:08:32下载
- 积分：1
-
DP-56
UCP problem solving Using Dynamic Problem by Maninder Kaur and Vikram Kumar
- 2013-12-20 19:06:48下载
- 积分：1
-
db4
1、 降噪步骤：
（1） 一维信号的小波分解。选择一个小波并确定分解的层次，然后进行分解运算。
（2） 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。
（3） 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。
matlab里面有关于去噪的函数，你可以找一下~~
这说的只是基本原理，希望有所帮助(1, noise reduction steps: (1) one-dimensional signal wavelet decomposition. Select a wavelet decomposition level and determining, and then divide the operation. (2) high coefficient wavelet thresholding. For each decomposition scales have high coefficient selection threshold soft threshold quantization. (3) one-dimensional wavelet reconstruction. According to the lowest level of the low frequency wavelet coefficients and high frequency coefficients of each one-dimensional wavelet reconstruction. There are about denoising matlab function, you can find some ~ ~ This says just the basic principle, we hope to help)
- 2013-07-01 14:36:08下载
- 积分：1
-
BP-shenjingwangluo
BP神经网络的通用代码，简单易懂，写法精练(BP neural network, the common code, easy to understand, concise writing)
- 2012-06-05 21:24:40下载
- 积分：1
