搜索资源列表
Beizier
- Decasteliau算法绘制Bezier曲线,右键点击给出控制点,点击画线按钮绘制曲线,次数很高的曲线也能绘制.环境vc2005-Bezier curve drawing algorithm Decasteliau, right-click the control point is given, click the button drawing a line drawn curve, the curve of the high frequency can also draw. Vc2005 e
xinshujugonglvpu
- 提取原始信号的功率谱就可以看出在哪个频带的能量比较高,噪声主要集中在哪里,这样就可以专门分析那个频带的噪声-The power extracted the spectrum of the original signal can be seen in which frequency band energy is high, the noise is mainly concentrated in where, so that it can be devoted to the analysis of
1
- 2.利用FFT对信号进行谱分析 对于连续信号xa(t)=cos(2πf1t) +5cos(2πf2t) +cos(2πf3t) ,其中f1=6.5kHz, f2=7kHz, f3=9kHz, 以采样频率fs=32 kHz对其进行采样, (1)对xa(t) 信号采集16点样本,分别作16点和补零到256点的FFT,并分别绘出对应的幅频特性曲线。 (2)对xa(t)信号采集256点样本,分别作256点和512点的FFT,并分别绘出对应的幅频特性曲线。 (3)比较(1)和(2)