Hi Chad,
there's something wrong with the indention of the lines between "def
__init__" and "g.sync_block", and the same goes for your work function;
so that's my first stab at explaining misbehaviour.
Best regards,
Marcus
On 29.10.2015 13:01, Chad R wrote:
> 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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