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From: | Ralf |
Subject: | [Discuss-gnuradio] DPSK2 Demodulator |
Date: | Wed, 29 Jun 2011 16:30:48 +0200 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.18) Gecko/20110616 Thunderbird/3.1.11 |
Hi,we are trying to use DPSK2 modulator and demodulator during our first trials.
As far as we can see there is hardly any documentation available on this. We would appreciate a few explaining words from somebody who knows how to configure the demodulator so that data is correctly received. What synchronization method(s) is/are included? Raised-cosine-filter for matched filtering seems to be included? We tried like this with no success: Modulator: Type: DQPSK Sample/Symbol: 2 Excess BW: 0.35 GrayCode: YES Verbose: OFF Logging: OFF Demodulator: Sample/Symbol: 2 Excess BW: 0.35 FLL Alpha: 0.01 Phase Alpha: 0.1 Timing Max Dev: 1.5 Omega Relative Limit: 0.005 GrayCode: YES Verbose: OFF Logging: OFF Sync Out: ON Thanks in advance! Ralf
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