labview编写的Agilent频谱分析仪器驱动.适用PickPower/FREQ/8M Channel power/6M Channel power量测.
标签： Channel power PickPower labview
上传时间： 2014-01-13
上传用户：zq70996813
Labview编写的Advantest系列频谱分析仪驱动.适用机型U3751/3131A.可做FREQ/Pick power/ Channel power量测.
标签： power Advantest Labview Channel
上传时间： 2014-03-12
上传用户：kbnswdifs
MSP430 LMX2326 sends 24 specified bits for LMX2326 SynthBuf[0] identical for three groups of FREQ,Ref and Init
上传时间： 2014-01-21
上传用户：qazxsw
it will make the sinosoidal wave forms after you input the values of phase,FREQ,delay and sampling intervals
标签： sinosoidal the sampling values
上传时间： 2014-01-17
上传用户：GHF
这是MCUMK7A22P的FREQ输出实用例子程序，希望对大家有所帮助。
上传时间： 2013-12-21
上传用户：songyue1991
单相交流串励电动机由于启动转矩大、转速高、体积小等一系列的特点，在电动工具、家用电器，尤其是小家电和吸尘器上获得了十分广泛的应用。论文对单相交流串励电动机的发热和振动特性进行研究。 在第二章，通过讨论电机的发热理论及其影响因素，结合实际建立了数学模型，推导得出一个工程上比较实用的公式，用来计算马达堵转时的温升，还编写了一个电脑程序来仿真计算马达堵转时的温升。 在第三章，讨论了电机转子和支撑组成的振动系统在多自由度和各种情况下的振动。应用杜哈梅积分式和傅立叶分析法将机械振动和电磁干扰联系起来，将机械振动问题转化为二阶电路的问题来进行处理。并且提出观点：1.先测量出机械振动的频谱图或电磁噪音的Db-FREQ频谱图，再用反傅立叶分解的方法将它们合成，得到周期性的激励的形状。2.由激励(力信号或电信号)所产生的波在弦内进行传播，信号经过衰减，辐射，在边界处反射，然后跟下一列波迭加，直到成为稳定的干扰信号。 在第四章，对样机进行测试，并和电脑仿真结果进行了比较。结果表明二者的偏差在2.5％以内。
上传时间： 2013-07-31
上传用户：csgcd001
·给大家发个用C语言写的，是个开环的。可用模拟示波器看波形的正弦波频率等参数，如果用数字示波器看波形，用电阻和电容搭一个低通滤波器，然后再看波形。程序中的FREQ为频率变量，改变其可改变波形的频率。建议在做电机实际控制器频率在10Hz~50Hz之间调节，否则后果自负。
上传时间： 2013-04-24
上传用户：llandlu
Radio FREQuency Integrated Circuit Design I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough FREQuency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio FREQuency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-FREQuencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.
上传时间： 2014-12-23
上传用户：han_zh
计算ARMA(p，q)模型的功率谱密度。 形参说明： b——双精度实型一维数组，长度为(q+1),存放ARMA(p，q)模型的滑动平均系数。 a——双精度实型一维数组，长度为(p+1),存放ARMA(p,q)模型的自回归系数。 q——整型变量,ARMA(p,q)模型的滑动平均阶数。 p——整型变量,ARMA(p,q)模型的自回归阶数。 sigma2——双精度实型变量,ARMA(p,q)模型白噪声激励的方差。 fs——双精度实型变量,采样频率(Hz)。 x——双精度实型一维数组,长度为len。当sign＝0时，存放功率谱密度；当sign＝ 1时，存放用分贝表示的功率谱密度。 FREQ——双精度实型一维数组，长度为len。存放功率谱密度所对应的频率。 len——整型变量，功率谱密度的数据点数。 sign——整型变量,当sign＝0时，计算功率谱密度；当sign＝1时，计算用分贝表 示的功率谱密度。
上传时间： 2015-04-09
上传用户：qiao8960
design LP,HP,B S digital Butterworth and Chebyshev filter. All array has been specified internally,so user only need to input f1,f2,f3,f4,fs(in hz), alpha1,alpha2(in db) and iband (to specify the type of to design). This program output hk(z)=bk(z)/ak(z),k=1,2,..., ksection and the FREQ.
标签： Butterworth internally Chebyshev specified
上传时间： 2015-11-08
上传用户：253189838
