Graphs showing the results to date of the SETIEasy v1.33 tests on the
linear_drift_*.wav files
This page last updated Sept. 27, 2000 at 10:00 PM

To begin to establish the performance of SETIEasy v1.31a, we are filling in the gaps in the following graphs using the weak signal test files. The following experiments were designed to test the hypothesis that SETIEasy can detect at least some of the weak frequency drifting signals in the 8-bit linear-drift test set. The results to date are:

The passage of time in the file is distorted to correct Doppler drifting (chirping). As a consequence of this process, the number of blocks of each size changes with the dechirp factor. The amount of time distortion can be quickly assessed by checking how long it takes to exhaust the data in 8 second long blocks (when the 16 second long blocks begin). At dechirp factor = 0 the passage of time is not distorted and 15 minutes of data takes 15 minutes to exhaust (see below). Note that dechirp factors from -1 to -0.6 are on a line with a different slope than dechirp factors from -0.5 to +1.0.