Description: 一， 一般步骤
（1），消除或减小恒定系差
（2），求测量数据的数学期望 ，即算术平均值 ：
， 其中n为测量数据次数， 为第 次测量的数据。
（3），求剩余误差 ：
（4），根据贝塞尔公式求标准偏差 ：
（5），检查是否有粗大误差。检查时用了肖维纳准则。如果某次测量的结果 所对应的 ，则认为是坏值，予以剔除。
（6），如有坏值，剔除后重新进行步骤（2）～（5）的计算，直至无坏值为止。
（7），判断有无变值系差。判断是可用马利科夫准则或阿卑—赫梅特准则。
（8），求出算术平均值的标准偏差 ：
必须注意，如前面计算中曾出现坏值，则这里的 应为剔除后重新计算出的标准偏差。
（9），求算术平均值的不确定度
-a general steps (a) to eliminate or reduce the lines is constant (2), the measurement data for the mathematical expectation, that arithmetic average :, in which n is the number of measurement data for the first time measurement data. (3), for the remaining error : (4), according to Bessel formula for standard deviation : (5) to check whether there is a large error. Check with the Xiaoweina criteria. If a certain measurements corresponding to the results, think it is bad value, be removed. (6), if a bad value, after excluding re-steps (2) to (5), until no bad value date. (7), with or without value judgment is poor. Judgment is available Malikefu guidelines or A 171-Hemeite criteria. (8), calculated arithmetic average of the standard deviation : the need attention, as previously had calculat Platform: |
Size: 35928 |
Author:jack |
Hits:
Description: National Instruments LabView software has a native file format called LabView Measurement File (LVM, extension .lvm). This m-file, lvm_import.m, reads LVM files and imports the data into the MATLAB workspace.
LVM is an ascii text file format, and the data can be imported into MATLAB using the built-in import.m function. However, import.m has some limitations: it cannot handle multi-part LVM files, and it does not return the contents of the file and section headers. lvm_import.m handles all types of LVM files, and returns specific information such as date, time, data column names, etc. Platform: |
Size: 3347 |
Author:aprist |
Hits:
Description: 一， 一般步骤
（1），消除或减小恒定系差
（2），求测量数据的数学期望 ，即算术平均值 ：
， 其中n为测量数据次数， 为第 次测量的数据。
（3），求剩余误差 ：
（4），根据贝塞尔公式求标准偏差 ：
（5），检查是否有粗大误差。检查时用了肖维纳准则。如果某次测量的结果 所对应的 ，则认为是坏值，予以剔除。
（6），如有坏值，剔除后重新进行步骤（2）～（5）的计算，直至无坏值为止。
（7），判断有无变值系差。判断是可用马利科夫准则或阿卑—赫梅特准则。
（8），求出算术平均值的标准偏差 ：
必须注意，如前面计算中曾出现坏值，则这里的 应为剔除后重新计算出的标准偏差。
（9），求算术平均值的不确定度
-a general steps (a) to eliminate or reduce the lines is constant (2), the measurement data for the mathematical expectation, that arithmetic average :, in which n is the number of measurement data for the first time measurement data. (3), for the remaining error : (4), according to Bessel formula for standard deviation : (5) to check whether there is a large error. Check with the Xiaoweina criteria. If a certain measurements corresponding to the results, think it is bad value, be removed. (6), if a bad value, after excluding re-steps (2) to (5), until no bad value date. (7), with or without value judgment is poor. Judgment is available Malikefu guidelines or A 171-Hemeite criteria. (8), calculated arithmetic average of the standard deviation : the need attention, as previously had calculat Platform: |
Size: 35840 |
Author:jack |
Hits:
Description: National Instruments LabView software has a native file format called LabView Measurement File (LVM, extension .lvm). This m-file, lvm_import.m, reads LVM files and imports the data into the MATLAB workspace.
LVM is an ascii text file format, and the data can be imported into MATLAB using the built-in import.m function. However, import.m has some limitations: it cannot handle multi-part LVM files, and it does not return the contents of the file and section headers. lvm_import.m handles all types of LVM files, and returns specific information such as date, time, data column names, etc. -National Instruments LabView software has a native file format called LabView Measurement File (LVM, extension. Lvm). This m-file, lvm_import.m, reads LVM files and imports the data into the MATLAB workspace.LVM is an ascii text file format, and the data can be imported into MATLAB using the built-in import.m function. However, import.m has some limitations: it cannot handle multi-part LVM files, and it does not return the contents of the file and section headers. lvm_import.m handles all types of LVM files, and returns specific information such as date, time, data column names, etc. Platform: |
Size: 3072 |
Author:aprist |
Hits:
Description: ds18b20测温电路与ds1302时钟日期显示电路＋proteus仿真全套-temperature measurement circuit and ds18b20 clock ds1302 date+ proteus simulation shows that a full set of circuit Platform: |
Size: 150528 |
Author:张威 |
Hits:
Description: 此计量管理系统经本人修正已可以无Bug的使用，
主要修正以下:
(1)修正启动提示 3- is not a valid integer value 的错误而无法进入系统
这是由于日期导致的问题，已全部修正，若有发现未修正到的使用Main_unit的"修正处"的数据进行修正
(2)加入一用户名 xueyongkun 密码：111 是系统管理员权限 方便大家测试
计量管理系统
使用注意事项：
(1) 请使用intraweb V6.0.22+Delphi7 原作者使用的是intraweb V6.0.21
intraweb V6.0.22 可在本论坛中寻得 http://intraweb.5d6d.com
(2)使用前，请将DataTable中的表全部复制到C:\Program Files\Common Files\Borland Shared\Data目录下(这点可能很多网友没注意)-This measurement system has been amended as I can without the use of Bug, the main amendments to the following: (1) to amend the boot prompt' 3- ' is not a valid integer value of the error can not be accessed because of the date of the issue of lead have been amendment, if it found the amendment to the use of Main_unit the " amendment to the Agency" to amend the data (2) by adding a user name password xueyongkun: 111 is the system administrator to facilitate the use of test measurement management system Notice: (1) the use of original author intraweb V6.0.22+ Delphi7 using intraweb V6.0.21 intraweb V6.0.22 can be found in this forum http://intraweb.5d6d.com (2) before use, please DataTable Copy all of the table to the C: \ Program Files \ Common Files \ Borland Shared \ Data directory (which many users may not pay attention) Platform: |
Size: 2620416 |
Author:薛永坤 |
Hits:
Description: 实现了带温度计的电子日历，基于ADuC7020，ARM7TDMI处理器内核。系统具体功能包括：实时温度测量；显示时间日期；万年历功能（公历、农历）；能掉电保存温度数据。-Achieved with a thermometer, an electronic calendar, based on ADuC7020, ARM7TDMI processor core. System Specific features include: real-time temperature measurement display time and date calendar functions (the Gregorian calendar, the Lunar) be able to power down to save the temperature data. Platform: |
Size: 403456 |
Author:姚益武 |
Hits:
Description: 1、能够快速计算各测点的最大值、最小值、平均值、变幅、最大值对应的日期、最小值对应的日期；
2、除了取得最值所对应的日期外，还可以设置参数，取得最值对应的气温、降雨、上下游水位等等；
3、能够求的各测点全部时间内的最值及其对应的日期、温度等，即能够实现全系列特征值统计；
4、能够实现某一段时间或者某一年的特征值统计，即能够实现时间段的局部特征值统计。-1, able to quickly calculate the various measuring points maximum, minimum, average, amplitude, and the maximum corresponds to the date, the minimum value corresponding to the date 2, in addition to get the most value corresponding to the date, but also you can set the parameters, get the most value corresponds to the temperature, rainfall, water level upstream and downstream, etc. 3 to seek full-time all measurement points within the best value and its corresponding date, temperature, etc., that is able to achieve a full range of characteristic values of statistics 4, can be to achieve a certain period of time, or the characteristics of a certain year the value of statistics, that can lead to periods of local eigenvalue statistics. Platform: |
Size: 1175552 |
Author:监测人 |
Hits:
Description: 本电子钟系本人自创，利用单片机AT89S52控制日历时钟芯片DS12C887实现多功能数字时钟。该时钟由单片机控制日历时钟芯片实现年份、月份、日期、时间信息的获取，并且通过LCD12864对年份、月份、日期、星期、节日、时间信息进行显示，可以对年份、月份、日期、星期、时间进行修改，具有掉电后时间信息不丢失的功能。另外具有闹钟功能和具有整点报时功能，可设置闹铃时间，当闹铃时间到时，进行闹铃，通过任意按键可解除闹铃；当整点到来，鸣奏音乐。采用18B20进行温度测控，超出温度阈值将会进行报警。我们将程序固化到单片机中，并且设有程序下载口，可以方便对程序进行升级。-Department of the electronic clock I own, the MCU AT89S52 control calendar clock chip DS12C887 multifunction digital clock. The clock calendar clock chip is controlled by the microcontroller to achieve the year, month, date, time, access to information and by LCD12864 on the year, month, date, week, holidays, time information display on the year, month, date, week, time modify the time information is not lost after power off function. In addition to the alarm clock function and the whole point timekeeping function, you can set the alarm time, alarm time is reached, the alarm, the alarm on any key when the whole point of arrival, blared music. The 18B20 temperature measurement and control, exceeding the temperature threshold will alarm. The curing process to the microcontroller, and a program to download the mouth, you can easily upgrade to the program. Platform: |
Size: 64512 |
Author:郑雷鸣 |
Hits:
Description: 51单片机，用DS1302实现数码管时钟（可调节年月日周时分秒）+闹钟（定时器驱动speaker,"两只老虎"），用DS18B20实现温度测量。实验板上功能调试OK,并带中文说明。-51 single-chip, using the DS1302 & digital tube clock (date can be adjusted)+ alarm clock (timer-driven speaker can be adjusted), with the DS18B20 temperature measurement. The experimental board function debug OK, and with Chinese instructions. Platform: |
Size: 4096 |
Author:michael |
Hits:
Description: 本文提出的多功能数字温度计系统设计, 采用了AT 89S52 单片机、DS18B20 单总线数字温度传感器、DS1302
时钟日历芯片、ISD1420 语音录放芯片等器件。该数字温度计的测量范围为0~ 120 e , 可实现多点测控。显示分辨
率为0. 1 e , 误差[ ? 0. 5 e 。交替显示实时日期、时间、温度 通过按键设置日期、时间、报警温度的上限和下限值。
当温度超过设定的上限或下限时, 能发出声、光报警提示。能实现实时语音播报日期、时间、温度等。该系统具有测量
精度高、工作稳定、功能多、使用方便等特点, 可以广泛应用于工农业生产、人们日常生活中, 对温度进行测量与监控,
具有较好的实用价值。-This paper presents the design of multifunction digital thermometer system, AT 89S52 MCU DS18B20 single-bus digital temperature sensor, DS1302 clock calendar chip, ISD1420 voice recorder chip devices. The digital thermometer measurement range of 0 ~ 120 e, and multi-point measurement and control. The display resolution is 0. 1 e, error [? 0 5 e. Alternately display real-time date, time, and temperature button to set the date, time, alarm temperature upper limit and the lower limit. When the temperature exceeds the set upper or lower limit, and audible alarm. To achieve real-time voice broadcast date, time, and temperature. The system has high accuracy, stable, multi-function, easy-to-use features, can be widely used in industrial and agricultural production and people' s daily life, temperature measurement and monitoring, has good practical value. Platform: |
Size: 7858176 |
Author:周向阳 |
Hits:
Description: Identifying overlapping period in time series.
Required input:
X = structure with in every cell (X{cell}) a measurement station.
every cell has its first three columns as [year,month,day]
Output:
begin_date = is beginning date of overlapping periods
end_date = end date of overlapping periods
output = structure with overlapping periods filtered
numcell = number of measurement stations-Identifying overlapping period in time series.
Required input:
X = structure with in every cell (X{cell}) a measurement station.
every cell has its first three columns as [year,month,day]
Output:
begin_date = is beginning date of overlapping periods
end_date = end date of overlapping periods
output = structure with overlapping periods filtered
numcell = number of measurement stations Platform: |
Size: 1024 |
Author:cuneyd |
Hits:
Description: 基于Delphi完成的单位转换器、度量转换器、日期转换器和温度转换器源代码，日期时间转换器可计算天数，根据输入的年月日来推算某天；常用单位转换，包括一些平方转换、体积转换等；温度转换主要是在华氏、摄氏、开尔文三种温度计量单位章进行转换；还有一个度量衡转换程序，用起来不错，但做起来似乎没那么容易啊，欢迎新手下载参考。-Completed based Delphi Unit converter, measurement converter, date converter and temperature converter source code, date and time converter calculates the number of days, according to the entered date to project one day common unit conversion, including the conversion of some square, volume conversion temperature conversion convert Fahrenheit, Celsius, Kelvin three kinds of temperature measurement unit Chapter There is also a weights and measures conversion process, good experience with them, but doing it did not seem so easy ah, novices are welcome to download the reference. Platform: |
Size: 221184 |
Author:约翰 |
Hits:
Description: 功能需求：
日期、时间、星期、按键校时、闹钟、温度测量、红外遥控校时。
人性化设计需求：
时间显示： 数码管(醒目)
星期显示：点阵(醒目+显示有限)
装饰： 来回流水灯
日期、温度和闹钟等辅助信息显示：液晶
近距离校时：按键
远距离遥控校时：红外遥控器
-Functional requirements:
Date, time, week, when the school keys, alarm clock, temperature measurement, infrared remote control at school.
Humanized design requirements:
Time Display: Digital tube (striking)
Weekday: dot matrix (striking+ show limited)
Decorations: light water back and forth
Date, temperature and alarm clock, and other auxiliary information display: LCD
When you close the school: Key
When long-distance remote school: infrared remote control
Platform: |
Size: 3072 |
Author:邵帮 |
Hits:
Description: 有一款很好的二维打印设计软件、录入采购订单号、供应商编号、物料号、批次号、数量、计量单位、日期自动生成二维码。(There is a good two-dimensional printing design software, input purchase order number, supplier number, material number, batch number, quantity, measurement unit and date automatically generate two-dimensional code.) Platform: |
Size: 1518592 |
Author:易达软件
|
Hits:
Description: Channel estimation for millimeter-wave (mmWave)
massive MIMO with hybrid precoding is challenging, since the
number of radio frequency (RF) chains is usually much smaller
than that of antennas. To date, several channel estimation schemes
have been proposed for mmWave massive MIMO over narrowband channels, while practical mmWave channels exhibit the
frequency-selective fading (FSF). To this end, this letter proposes
a multi-user uplink channel estimation scheme for mmWave
massive MIMO over FSF channels. Specifically, by exploiting the
angle-domain structured sparsity of mmWave FSF channels, a
distributed compressive sensing (DCS)-based channel estimation
scheme is proposed. Moreover, by using the grid matching pursuit strategy with adaptive measurement matrix, the proposed
algorithm can solve the power leakage problem caused by the
continuous angles of arrival or departure (AoA/AoD). Simulation
results verify that the good performance of the proposed solution. Platform: |
Size: 152576 |
Author:hadjidw |
Hits:
Search - measurement date