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From: | Nemanja Savic |
Subject: | Re: [Discuss-gnuradio] access code detection threshold in benchmark tx/rx scripts |
Date: | Fri, 15 Feb 2013 11:30:50 +0100 |
I'm trying to understand the benchmark receive path. The access code detection threshold is set to -1 in receive_path.py. After looking at the digital_correlate_access_code_bb block, it appears the INT32 threshold, -1, is being compared with the *UINT32* Hamming distance between the known code and the received code. If I'm not mistaken, C/C++ will do unsigned comparison and therefore *any* number of errors < UINT32_MAX (2^32 - 1) will be accepted. Am I reading this incorrectly?
--sean
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