Answers: 3
Physics, 21.06.2019 22:30, droidd133
Fft review: linspace, fs, fftshift, nfft 1. generate one second of a cosine of w,-10hz sampled at f, = 100hz and assign it to x. define a tt as your time axis 2. take 64 points fft. 3. as you remember, the dft (which the fft implements) computes n samples of s2t where k-0,1,2, n -1. plot the magnitude of this 64-points fft at range 0 to 63, what do you think of this graph? 4â·to get the x-axis into a hz-frequency form, plot this 64-points fft between-50 to 50 (the 100hz sampling rate) and have n-points between them. 5. according to your figure, what frequency is this cosine wave at? 6. remember that the fft is evaluating from 0 to 2ď€. we are used to viewing graphs from-ď€ to ď€. therefore, you need to shift your graph. 7. now according to your shifted graph. what frequency is this at? 8. note that the spikes have long drop-offs? try a 1024-point dft. note that the peak is closer to 10 and the drop-off is quicker. although, now sidelobes are an issue
Answers: 2
Physics, 22.06.2019 09:00, jaeana
Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
Answers: 1
Physics, 22.06.2019 17:30, babygreg2001p97abr
Current from a charged capacitor lights a bulb. as time goes on the brightness of the
Answers: 3
Awire 2.80 m in length carries a current of 7.40 a in a region where a uniform magnetic field has a...
Mathematics, 04.08.2019 04:00
English, 04.08.2019 04:00
Social Studies, 04.08.2019 04:00
History, 04.08.2019 04:00