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From: | Tom Rondeau |
Subject: | Re: [Discuss-gnuradio] use of CCSDS 27 encoder-decoder blocks |
Date: | Mon, 11 Jan 2016 12:24:11 -0500 |
thanks tom for your reply. as you told me to use fec api blocks i tried to use fec encoder and decoder blocks but still my output is not same as input. may be i am missing something while i am using these blocks. i have attached the image and .grc file of my flowgraph.Hitesh
On Mon, Jan 4, 2016 at 8:30 PM, Tom Rondeau <address@hidden> wrote:On Fri, Jan 1, 2016 at 3:17 AM, Hitesh Kasera <address@hidden> wrote:Hi everyone,I am trying to use ccsds 27 encoder-decoder to transmit some data. The decoded data is not same as transmitted. As a source i am transmitting ones and zeros but after decoding sometimes i am receiving values which are greater than 1. i am not able to recognize where am i going wrong. if anyone has any idea please tell me. i have attached both grc file and png image of my flow graph.Best Regards,HiteshChanging the problem a bit, I'd recommend moving away from the CCSDS encoder/decoder blocks and using the FEC API blocks, instead. See:The CC Encoder and CC Decoder are basically the CCSDS codes (you might have to swap the two polynomials; I always forget off the top of my head which is called which code here).Tom
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