这里先构建一个输入2Vpp的sine波,先不加窗,然后fft变换后得到频谱 importnumpyasnpimportmatplotlib.pyplotasplt# sine wave generatorfs=250e3t_interval=1/fsfin=5e3n_period=100sample_N=int(fs/fin*n_period)# sample_N = 16384t=np.arange(0,sample_N*t_interval,t_interval)xn=1*np.sin(2*np.pi*...
(0, li_durSec, li_N, endpoint=False) # Create a smaller scope for visualization samples_per_period = int(li_fsam/lf_sigFreq) t_scope = np.linspace(0, 2/lf_sigFreq, 2*samples_per_period, endpoint=False) # Generate the waveform with harmonics (similar to a square wave) print("...
Sine Wave In order to generate a sine wave, the first step is to fix the frequency f of the sine wave. For example, we wish to generate a sine wave whose minimum and maximum amplitudes are -1V and +1V respectively. Given the frequency of the sinewave, the next step is to deter...
Note that you won’t see any output while the program’s running. To stop recording the chosen radio station and exit your script, hit Ctrl+C on Linux and Windows or Cmd+C if you’re on macOS. While you can write a WAV file in chunks now, you haven’t actually implemented proper ...
Repository files navigation README sine-wave-using-python In this project, "matplotlib" and "numpy" packages are used to generate a sine wave. About No description, website, or topics provided. Resources Readme Activity Stars 1 star Watchers 1 watching Forks 0 forks Report repository...
# Sine goes from -1.0 to 1.0, so we need to change it by a multiplier: multiplier = (WIDTH - len(message)) / 2 try: while True: # Main program loop. sinOfStep = math.sin(step) padding = ' ' * int((sinOfStep + 1) * multiplier) print(padding + message) time.sleep(0.1) ...
{kfork,vin<dict>.items()ifv==value}# Returns set of keys that point to the value. {k:vfork,vin<dict>.items()ifkinkeys}# Returns a dictionary, filtered by keys. 1. 2. 3. 4. Counter >>>fromcollectionsimportCounter >>>colors=['blue','red','blue','red','blue'...
We then generate a test image to display. Note that the image has to be converted to 8-bit integers, be careful to have integers between 0 and 255. We can then display the image on the SLM and close the window once finished.
BeautifulSoup（爬虫）Tkinter（UI界面）argparse（命令行）math（数学运算）至于其他的，就是因人而异，不...
Scikit-learn TensorFlow Flask Django Requests Beautiful Soup PyMySQL Python当中经典的常用库有很多，...