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fixed: fix resetting sweep range #83

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TT 2019-10-17 23:49:40 +09:00
parent 85c8b5c893
commit 87c6e64a25
1 changed files with 8 additions and 1 deletions
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9
python/nanovna.py
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@ -36,7 +36,6 @@ class NanoVNA:
self.filter = None # bandpassfilter_5khz
self._frequencies = None
self.points = 101
self.set_sweep(1e6, 900e6)
@property
def frequencies(self):
@ -228,10 +227,12 @@ class NanoVNA:
def logmag(self, x):
pl.grid(True)
pl.xlim(self.frequencies[0], self.frequencies[-1])
pl.plot(self.frequencies, 20*np.log10(np.abs(x)))
def linmag(self, x):
pl.grid(True)
pl.xlim(self.frequencies[0], self.frequencies[-1])
pl.plot(self.frequencies, np.abs(x))
def phase(self, x, unwrap=False):
@ -241,21 +242,25 @@ class NanoVNA:
a = np.unwrap(a)
else:
pl.ylim((-180,180))
pl.xlim(self.frequencies[0], self.frequencies[-1])
pl.plot(self.frequencies, np.rad2deg(a))
def delay(self, x):
pl.grid(True)
delay = -np.unwrap(np.angle(x))/ (2*np.pi*np.array(self.frequencies))
pl.xlim(self.frequencies[0], self.frequencies[-1])
pl.plot(self.frequencies, delay)
def groupdelay(self, x):
pl.grid(True)
gd = np.convolve(np.unwrap(np.angle(x)), [1,-1], mode='same')
pl.xlim(self.frequencies[0], self.frequencies[-1])
pl.plot(self.frequencies, gd)
def vswr(self, x):
pl.grid(True)
vswr = (1+np.abs(x))/(1-np.abs(x))
pl.xlim(self.frequencies[0], self.frequencies[-1])
pl.plot(self.frequencies, vswr)
def polar(self, x):
@ -426,7 +431,9 @@ if __name__ == '__main__':
else:
if opt.start or opt.stop:
nv.set_sweep(opt.start, opt.stop)
nv.fetch_frequencies()
s = nv.data(p)
nv.fetch_frequencies()
if opt.smith:
nv.smith(s)
if opt.polar: