Good day every one
I have implemented a Python block but I am not getting the results I
expected. I get the results I expect at any frequency=samp_rate/2^n where n
is any integer. My block makes use of a yall1 reconstruction algorithm to
reconstruct a signal from M=100 to N=1024 vector.
The code for my block is shown below:
class yall1_reconstruction_cc(gr.sync_block):
"""
Yall1_reconstruction_block
"""
def __init__(self,n,m):
self.N = n
self.M = m
phi =
np.load("/home/chad/Desktop/PROJECT/Python/Matrices/phi_mtx%(M)dx%(N)d.npy"
%{"M":self.M,"N":self.N})
psi =
np.load("/home/chad/Desktop/PROJECT/Python/Matrices/psi_mtx%(N)dx%(N)d.npy"
%{"N":self.N})
self.alpha = np.dot(phi,psi)
gr.sync_block.__init__(self,
name="yall1_reconstruction",
in_sig=[(np.complex64,self.M)],
out_sig=[(np.complex64,self.N)])
def work(self, input_items, output_items):
in0 = input_items[0]
size = np.shape(in0)[0]
out = np.zeros((size,self.N),dtype = np.complex64)
#out = yall1(self.alpha,in0[0]).reshape(self.N,)
for i in range(0,size):
recon = yall1(self.alpha, in0[i].reshape(self.M,1))*4.7
out[i] = recon.reshape(self.N,)
output_items[0][:] = out
return len(output_items[0])
Have I implemented it right? or is my issue with my implementation? I read
through the tutorials but I feel some aspects are quiet hard to follow.
Thank you in advance for your help
Chad Richs
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