纹理图像分割Matlab源代码 PDF PPT

雷达恒虚警（CFAR）检测过程仿真，参照《雷达信号处理基础》一书，仿真一维距离像CFAR检测

剔除测量数据中异常值的若干方法,第1期何平:剔除测量数据中异常值的若干方法21表3n,a相应的Y值3.91-00.010.010.6790.576190.4620.889).765120.6420.5460.5350.4500.7800.642130.6150.52l210.5240.44060.6980.560140.6410.5460.5140.4300.6370.507150.616230.50580.6830.554160.5950.5070.4130).406100.447180.5610.475表4Z,与n值的对应关系3458902131415161820301050zc1.381.541.651.731.801.881.921.962.002.032.072.102.132.152.202.242.392.492.58表51组测量数据(已按顺序从小到大排好)810t20.3020.3920.3920.3920.4020.4020.4]20.4120.4220.4220.4220.4320.4320.4320.43查表3得到临界值Y。(15,0.05)=0.525,根据也都有其局限性。例如:所有的准则都是以数据按正态狄克逊准则,由于Y2>%(15,0.05),故t值是异常分布为前提的,当偏离正态分布时,判断的可靠性将受值,应予舍弃。影响。还有几个准则对n值的要求也各有不同:当大样程序框图如图3所示本测定时,使用莱因达准则最适合,但当小样本测定24肖维勒准则应用软件流程图及实例时,则一般推荐使用格拉布斯准则和狄克逊准则。而肖计算算术平均值t=20.405维勒准则在某种程度上讲仅仅是莱因达准则的补充计算剩余误差v及均方差a=0.01498在实际测量中,一般取测量次数n=5~20次,特从表4中查得相应的Z值(n=15,故Z2=2.13)别精密的测量,也很少超过100~200次。因此,使用根据肖维勒准则检测l1是否为异常值以上各种准则时,必须注意测量次数的限制。对于莱因1-t|=0.105达准则、一般建议测量次数大于或等于50次,而对于而Zσ=2.13×0.01498≈0.03191格拉布斯准则和狄克逊准则,则建议小于或等于20次。但这一区别并不是十分严格的由于|1-t1>z,则t1值异常,应予舍弃。程序框图对小样本来说,由于格拉布斯准则能给出较严格如图4所示。的结果,狄克逊准则无需计算X和o,方法简便,且23几种方法的进一步讨论者的概率意义明确。因此,它们能较好地适用于采样次从以上的应用情况来看,似乎各种准则的应用实数不太多的一般测量列践都很一致,但这只是个特例,并没有普遍性。举这个设X为N(0,1),在1个大小为n的子样中混入例子,只为了更好地说明几种准则都能得到很好的应个Y:N(μ,δ)的子样。有研究结果表明:格拉布用。需要指出的是,以上各准则都是人为主观拟定的,斯方法的检出概率P略高于狄克逊方法的检出概率直到目前为止,还没有统一的规定,因此,它们的应用PD,如表6所示:(N(0,1)叫作标准正态分布)o1994-2012ChinaAcademicJournalElectronicpUblishingHouse.Allrightsreservedhttp://www.cnki.net2航空计测技术第15卷STARTSTARTSTARTSTART输入数据输入数据输入数据输入数据计算算术平均值入计x根据n值,及均方根偏差从表2中计算出相应y计算算术平均值计算剩余误差;,计算T值并选定均方根偏差σ危险率a选定危险率a计算剩余误差v,均方根偏差判别粗大误差查表得相应的(n,a)从表3中查出%(n,a)值从表4中查出相应Z值打印输出结果判别数据是否为异常?判别敦据是否异常判别粗大误差ENDExDENDEND图1莱因达准则应图2格拉布斯准则图3狄克逊准则应图4肖维勒准则应用程序框图应用程序框图用程序框图用程序框图表6P与PD的比较舍。但是,对待粗大误差,除从测量结果中及时发现和利用剔除原则鉴别外,更重要的是提高工作人员的技术a(%)水平和工作责任心,不要在情绪不宁和极度疲劳的情况5.01.0下,进行重要的测量工作。另外,要保证测量条件的稳定,防止因环境条件剧烈变化而产生的突变影响。只有δ11221122这样,才能提高测量的精度,得到满意的测量结果PG(%)10.240.429.854.22.515.712.731.3参考文献PD(%)9.335.726.850.02.212.910.526.31梁晋文等编著.误差理论与数据处理.北京:中国计由于混入的Y不一定是子样中最大的数据,所以,量出版社,1989实际检出效果还要高一些2何国伟编著,误差分析方法.北京:国防工业出版社,4结束语3王文松.测量列中离群值的判断.电测与仪表,1992,从以上论述可以看出,在进行测量数据处理时,可11)以应用各种准则进行粗大误差判别,以决定数据的取o1994-2012ChinaAcademicJournalElectronicpUblishingHouse.Allrightsreservedhttp://www.cnki.net

C++五子棋游戏的完美程序 在VC下可完美运行 另有课程设计的实验报告 名字为“C++五子棋实验报告最终版”配套报告

使用CC2591作为CC2530的功放, CC2591 PAThe absolute maximum ratings and operating conditions listed in the CC2530 datasheet [1]and the CC2591 datasheet [4] must be followed at all times. Stress exceeding one or more ofthese limiting values may cause permanent damage to any of the devicesNote that these characteristics are only valid when using the recommended register settingspresented in Section 4.6 and in Chapter 8, and the CC2530 - EM reference designOperating Frequency240524835MHzOperating Supply Voltage2036VOperating Temperature-40CTC=25C, VDD=3.0V, f=2440 MHz if nothing else is stated. All parameters are measuredon the CC2530-Cc2591EM reference design [11] with a 50 Q2 loadReceive CurrentWait for sync, -90 dBm input levelWait for sync, -50 dBm input level24mATXPOWER OXE5166mATXPOWER OXD5149mATXPOWER OXC5138mATXPOWER OXB5127mATransmit currentTXPOWER OXA5115ATXPOWER = 0X95100mATXPOWER = 0X8594ATXPOWE=0×75mATXPOWE=0×6579APower Down Current PM2UAISTRUMENTSPage 3 of 19SWRA308ATC=25C, Vdd=3.0V, f= 2440 MHz if nothing else is stated. All parameters are measuredon the CC2530-CC2591 EM reference design with a 50 Q2 loadReceive Sensitivity HGM 1 %PER, IEEE 802. 15.4[6] requires -85 dBm-988dBmReceive Sensitivity LGM1 PER, IEEE 802. 15.4 [6] requires -85 dBm-90.4dBmSaturationlEEE 802.15. 4 [6] requires-20 dBm10dBmWanted signal 3 db above the sensitivity levelIEEE 802.15.4 modulated interferer at ieee 802.15.4 channelsInterferer Rejection+5 MHz from wanted signal, IEEE 802. 15. 4 [6] requires 0 dBdB+10 MHz from wanted signal, IEEE 802. 15. 4 [6] requires 30 dB49dB+20 MHz from wanted signal wanted signal at- 82d BmdBdue to in the external lna and the offset in cc2530 the rssi readouts from cc2530CC2591 is different from rssi offset values for a standalone cc2530 design the offsetvalues are shown in table 4.4High Gain Mode79LoW Gain mode67Real rssi Register value-Rssl offsetISTRUMENTSPage 4 of 19SWRA308ATc=25C, Vdd=3.0V, f=2440 MHz if nothing else is stated All parameters are measuredon the CC2530-CC2591 EM reference design with a 50 Q2 load Radiated measurements aredone with the kit antennaRadiated Emissionwith TXPOWer Oxe5Conducted 2. RF (FCC restricted band)-462|dBmConducted 3. RF(FCC restricted band46.5 dBmComplies withFCC 15.247. SeeChapter 7 for moredetails about regulatoryRadiated 2.RF(FCC restricted band)42.2dBmrequirements andcomplianceIEEE 802.15.4[6]requires max.35%%Measured as defined by IEEE 802.15. 4 6TXPOWER OxE5. f= EEE 802.15. 4 channels13TXPOWER= OXD5. f= EEE 802.15.4 channelsTXPOWER= OXC5 f= EEE 802.15.4 channelsMax error∨ ectorTXPOWER OxB5 f= IEEE 802.15. 4 channelsMagnitude(EVM)TXPOWER OxA5. f= IEEE 802.15.4 channelsTXPOWER 0X95. f= IEEE 802. 15.4 channels643333%%%%%%%TXPOWER= 0x85. f= iEEE 802. 15.4 channelsTXPOWER =0x75 f= IEEE 802. 15.4 channels%TXPOWER= 065. f= iEEE 802. 15.4 channelsThe RF output power of the CC2530- CC2591 EM is controlled by the 7-bit value in theCC2530 TXPOWER register. Table 4.6 shows the typical output power and currentconsumption for the recommended power settings The results are given for Tc= 25 C, Vdd3.0V and f= 2440 MHz, and are measured on the cC2530-CC2591 EM reference designwith a 50 Q2 load. For recommendations for the remaining CC2530 registers, see Chapter 8 oruse the settings given by SmartRF StudioOXE520166OxD519149OxC18138OxB517127OxA5161150x95141000x8513940X75860x651079Note that the recommended power settings given in Table 4.6 are a subset of all the possibleTXPOWER register settings. However, using other settings than those recommended mightINSTRUMENTSPage 5 of 19SWRA308Aresult in suboptimal performance in areas like current consumption, EVM, and spuriousemissionTc=25C, Vdd=3.0V, f=2440 MHz if nothing else is stated All parameters are measuredon the CC2530-CC2591EM reference design with a 50 32 load2221-2V201918171611121314151617181920212223242526251510OxE5OxC5OxA50X850x65540-30-20-1001020304050607080ISTRUMENTSPage 6 of 19SWRA308A98Avg 3.6VAva 3vAvg 2V110111213141516171819202122232425261023.6V-1062V-110-40-30-20-100102030405060708070604020-Wanted signal at:-82 dBm10ISTRUMENTSPage 7 of 19SWRA308ACC2530-CC2591EM High Gain ModeC C2530-CC2591EM Low Gain Mode- CC2530EM40000-100110100908070-60-50-40-30-20-100The IEEE standard 802.15. 4 [8] requires the transmitted spectral power to be less than thelimits specified in table 4.7If-fc>3.5 MHz-20 dB-30 dBmThe results below are given for Tc=25 C, Vdd=3.0V and f= 2440 MHz, and are measuredon the CC2530-CC259 1EM reference design with a 50 Q loadIEEE absoluteChannel 182432.52435243752442524452447.5ISTRUMENTSPage 8 of 19SWRA308AOnly a few external components are required for the CC2530-CC2591 reference design. Atypical application circuit is shown below in Figure 5.1. Note that the application circuit figuredoes not show how the board layout should be done. The board layout will greatly influencethe RF performance of the CC2530-CC2591EM. TI provides a compact CC2530CC2591 EM reference design that it is highly recommended to follow. The layout, stack-upand schematic for the CC2591 need to be copied exactly to obtain good performance. Notethat the reference design also includes bill of materials with manufacturers and part numbersL102 L10=TI INF inductorVDD13cc2530LA 1RF PANTCC2591 RF NFNPA EN(P1 1)i工工I NA FNP:1HGM ENPO 7)T:1Proper power supply decoupling must be used for optimum performance. In Figure 5.1, onlythe decoupling components for the CC2591 are shown. This is because, in addition todecoupling, the parallel capacitors C11, C101, and C131 together with, L101, L102, TL11TL101 and TL131 also work as RF loads. These therefore ensure the optimal performancefrom the CC2591. C161 decouples the AvDD blAs power.The placement and size of the decoupling components, the power supply filtering and thePCB transmission lines are very important to achieve the best performance Details about theimportance of copying the CC2530-CC2591EM reference design exactly and potentialconsequences of changes are explained in chapter 6The RF input/output of CC2530 is high impedance and differential. The CC2591 includes abalun and a matching network in addition to the PA, LNa and RF switches which makes theinterface to the CC2530 seamless. Only a few components between the CC2530 andCC2591 necessary for RF matching For situation with extreme mismatch(VSWR 6: 1 till 12: 1out-of-band as shown in Figure 6.2) it is recommended to include all the components asshown in Figure 5.1ISTRUMENTSPage 9 of 19SWRA308ANote that the PCB transmission lines that connect the two devices also are part of the RFmatching. It is therefore important to copy the distance between the devices, the transmissionlines and the stack-up of the PCB according to the reference design to ensure optimumperformanceThe network between the CC2591 and the antenna(L111, C112, C111 C113 and L112matches the CC2591 to a 50 2 load and provides filtering to pass regulatory demands. C111also works as a dc-blockR151 is a bias resistor the bias resistor is used to set an accurate bias current for internaluse in the cc2591The TI reference design contains two antenna options. As default, the Sma connector isconnected to the output of CC2591 through a 0 Q2 resistor. This resistor can be soldered offand rotated 90 clockwise in order to connect to the PCB antenna, which is a planar invertedF antenna(PIFA). Note that all testing and characterization has been done using the SMAconnector. The PCB antenna has only been functionally tested by establishing a link betweentwo EMs. Please refer to the antenna selection guide [6] and the Inverted F antenna designnote [7 for further details on the antenna solutionsISTRUMENTSPage 10 of 19SWRA308A

ShaderX1-7（缺4、6） GPU pro1-7， GPUZen，GPU Gems1-3资源太大给的是链接

一种自适应平方根中心差分卡尔曼滤波算法（ASRCDKF），并应用于捷联惯性导航系统（SINS）大方位失准角初始对准中。ASRCDKF 算法以中心差分变换为基础，基于平方根滤波能够克服发散的思想，利用协方差平方根代替协方差参加递推运算，并将自适应估计原理引入该算法中，不仅克服了扩展卡尔曼滤波产生线性化误差和计算雅可比矩阵的不足，而且减小了计算量，保证了数值稳定性。同时，ASRCDKF 算法解决了传统滤波算法过度依赖系统动态模型和噪声统计特性先验知识的问题。通过滤波仿真，进一步表明了ASRCDKF 算法在SINS 大方位失准角初始对准中的有效性和优越性。

C程序设计语言（第2版·新版）（英文版+中文版+习题解答）.zip

用Gambit画网格，Fluent做动网格，计算域含自由液面VOF，每步设置均有截图

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无刷直流电机全桥驱动电路，原理图+PCB，PCB带3D视图，方便直观查看PCB。此驱动板可同时独立的驱动两路无刷直流电机。