-
学生管理系统UML建模
学生成绩管理工作是高校教育工作的一项重要内容。教务管理工作是指学校管理人员按照一定教育方针，运用先进的管理手段，组织 、协调 、指挥并指导各用户活动，以便高效率、高质量地完成各项教学任务，完成国家所制定的教育目标。
- 2021-01-14 21:18:46下载
- 积分：1
-
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
-
信道相关性对信道容量的影响
程序主要是描述了天线的相关性对信道容量的影响，对比无相关和相关时的性能
- 2020-12-04下载
- 积分：1
-
QSS智能设计器
一键生成QSS，智能配色，快速出效果，界面美观大方，专为无美工的小公司小团队或者个人开发者服务，不需要繁琐的配色，因为程序员的审美你懂得。。。针对有美工的大团队或者追求超级酷炫吊炸天的可以忽略本软件，我们追求的是最小的精力创造最佳的效果。
- 2020-12-01下载
- 积分：1
-
Hackers delight 2nd edition
Hackers delight 2nd edition黑客必备
- 2020-12-01下载
- 积分：1
-
jlink_ob固件
自己在6.18c驱动里面提取的最新固件，我博客里面有提取教程
- 2020-06-28下载
- 积分：1
-
(温度PID)实验指导书(三菱).pdf
三菱温度PID控制实例及程序
- 2020-12-08下载
- 积分：1
-
GPOPS II.rar
【实例简介】基于Matlab的高斯伪谱法，用于参数优化和最优化，非线性求解器包含SNOPT和IPOPT。有教程和案例，实测可用。
- 2021-11-08 00:33:41下载
- 积分：1
-
某集团大数据平台整体方案建议书 下载
某文库里标价40RMB的一份完整的大数据方案，520页的Word文档
- 2021-05-06下载
- 积分：1
-
PRBS信号进行QPSK调制；画出星座图；加入噪声后计算误码率
通信原理课程习题：1.以2^10个二进制PRBS作为消息码，载波频率为2.4GHz，利用MATLAB画出QPSK调制波形的频谱图和星座图，其中码元速率为50MBaud/s2.在上述生成的QPSK信号中引入高斯白噪声，调节SNR至10dB（或者其他认为合适的值）然后重新生成星座图，并计算误码率。（选做）
- 2020-12-01下载
- 积分：1
