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四次软件测试实验报告
主要是黑盒测试白盒测试QuickTest Professional 使用LoadRunner的使用等的实验报告
- 2020-12-09下载
- 积分:1
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频率估计matlab
对噪声信号中的正弦信号,通过Pisarenko谐波分解方法、Music算法和Esprit算法进行频率估计,信号源是: 其中, , , ; 是高斯白噪声,方差为 。使用128个数据样本进行估计。 1、用三种算法进行频率估计,独立运行20次,记录各个方法的估计值,计算均值和方差; 2、增加噪声功率,观察和分析各种方法的性能。
- 2020-12-02下载
- 积分:1
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NNDA PDA JPDA IMM数据关联算法matlab代码
NNDA PDA JPDA IMM数据关联算法matlab代码
- 2020-07-04下载
- 积分:1
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STM32实现Modbus协议主机源代码
STM32实现modbus主机协议,希望对大家有帮助!
- 2020-12-06下载
- 积分:1
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MATLAB中计算psnr值的实现
用来比较两个图像进行去噪后的效果,有psnr和mse,很有用的一个计算公式,希望对大家有所帮助
- 2020-12-12下载
- 积分:1
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基于LSTM模型的股票预测模型_python
https://blog.csdn.net/zxm_jimin/article/details/94742224
- 2021-05-06下载
- 积分:1
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东方财富网公告爬取2
爬取东方财富网公司公告,包括爬取利用ajax加载的网页,以及如何模拟翻页。与上一版增加了对各种错误机制的处理。
- 2021-05-06下载
- 积分:1
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频谱仪——安捷伦N9010A操作手册
频谱仪的介绍、操作及性能指标,硬件工程师必须学会的测量器件之一。Definitions and conditionsSpecifications describe the performance of parameters covered by the productwarranty and apply to the full temperature of 0 to 55C, unless otherwisenotedGet more Information95th percentile values indicate the breadth of the population (approx. 2 o) of perfor-This EXA signalanalyzer datamance tolerances expected to be met in 95 percent of the cases with a 95 percentsheet is a summary of theconfidence, for any ambient temperature in the range of 20 to 30C. In addition tothe statistical observations of a sample of instruments, these values include thespecifications and conditionseffects of the uncertainties of external calibration references these values are notfor N9010A EXA and N9010AEPwarranted. These values are updated occasionally if a significant change in theExpress EXA signal analyzers.statistically observed behavior of production instruments is observedwhich are available in the EXASignalAnalyzer SpecificationTypical describes additional product performance information that is not covered byGuide(N9010-90025)the product warranty It is performance beyond specifications that 80 percent of theunits exhibit with a 95 percent confidence level over the temperature range 20 toFor ordering informationkrefer30C. Typical performance does not include measurement uncertaintyto the EXA Signal AnalyzerConfiguration GuideNominal values indicate expected performance, or describe product performance59896531Nthat is useful in the application of the product, but are not covered by the productwarrantyThe analyzer will meet its specifications whenIt is within its calibration cycleUnder auto couple control, except when Auto Sweep Time rules= AccySignal frequencies 10 MHZ, with DC coupling appliedThe analyzer has been stored at an ambient temperature within the allowedoperating range for at least two hours before being turned on; if it had previouslybeen stored at a temperature range inside the allowed storage range, but outsidethe allowed operating rangeThe analyzer has been turned on at least 30 minutes with auto align set tonormal, or, if Auto align is set to off or partial, alignments must have been runrecently enough to prevent an Alert message; if the Alert condition is changedfrom Time and Temperature to one of the disabled duration choices, the analyzermay fail to meet specifications without informing the userFor the complete specifications guide, visitwww.agilent.com/find/exaspecifications1. For earlier instruments/Serial number prefix MY/SG/US5052), the full temperature rangesfrom5t50°CFrequency and Time specificationsFrequency rangeDC coupledAC coupledOption 50310 Hz to 3.6 Gh10 MHz to 3. 6 GHzOption 50710 Hz to 7 GH10 MHz to 7 GHzOption 51310 Hz to 13.6 GHz10 MHz to 13.6 ghzOption 52610 Hz to 26.5 GH10 MHz to 26.5 GhzOption 53210 Hz to 32 gHzNAOption 54410 Hz to 44 gHzNABandLO multiple(N)10 Hz to 3. 6 GHz3.5to7.0GH3.5to8.4GH28.4 to 13.6 GHz3135to17.1GH17 to 26.5 GHz5426.4 to 34.5 ghz344t044GHzFrequency referenceAccuracy+l time since last adjustment x aging rate)+ temperature stability t calibrationaccuracyAging rateOption pFrStandardy±1×106/year±15X107/2 yearsTemperature stabilityOption PFrStandard20to30°c±15×108±2×106Full temperature range±5x1±2×10Achievable initial calibration accuracyOption PFrStandard±4x108±1410Example trequency reterence accuracy=±(1×107+5×103+4×10-)(with Option PFR1 year after last adjustment±19x10Residual fmOption pFr
- 2021-05-06下载
- 积分:1
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圆环阵列的三维图 和线阵的SMI SLC算法 MATLAB
对初学天线方向图的有帮助 主要是几种自适应方法 还有圆环阵列的三维方向图
- 2020-12-09下载
- 积分:1
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KPCA故障诊断程序
KPCA故障诊断程序 主要是KPCA进行故障诊断对数据的处理
- 2020-12-06下载
- 积分:1