Update home authored by Wei Changfeng's avatar Wei Changfeng
...@@ -313,31 +313,7 @@ Fig.9 bilby signal's posterior ...@@ -313,31 +313,7 @@ Fig.9 bilby signal's posterior
> dec=0 > dec=0
As we can see, mass_1, t_zero, dec are not estimated very well, whose truths are on the edge. As we can see, mass_1, t_zero, dec are not estimated very well, whose truths are on the edge.
## (15)VItamin: Korean BBH waveform test
For Korean waveform, signal is generated with points less than 256. We need to pad it to 256 as VItamin requires. I pad it on the back because start time is already set when generating signal.
Next is to find t_zero's value.
In my understanding of t zero:
![微信截图_20201203011518](uploads/9eb61191e74b0e31c8298f7577418589/微信截图_20201203011518.png)
t_zero = t_peak - ref_geocent_time.(Is that right?)
Then we get t_zero's truth.
Fig.10 Korean signal
![000](uploads/44643fae14b16ea57b031dc8364cda8e/000.png)
Fig.11 Korean whitened signal
![001](uploads/f4ef090b6f7c48e3697d6c80688ea3f2/001.png)
Fig.12 Korean whitened signal with Gaussian white noise
![003](uploads/fdadcff96b9e14f23a6b57b88e680a45/003.png)
Fig.13 Korean signal's posterior
![vitamin_corner_timeseries-0](uploads/c24ff1d516e0fa8f87c93ab70835b23a/vitamin_corner_timeseries-0.png)
> mass_1=57.5
> mass_2=57.5
> luminosity_distance=2236
> t_zero=???
> theta_jn=6.08
> ra=5.61
> dec=-0.07
I generate 4 samples for this test. Plots above are of the first one. As we can see, theta_jn and ra are totally wrong. Other parameters are good. Furthermore, theta_jn and ra also get a bad estimation in other 3 samples.
## (16)Comparison between Bilby waveform and Korean waveform
# 2.Data # 2.Data
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