Bandpass pulse amplifiers with optimal bandwidth—overshoot characteristics

1964 ◽  
Vol 111 (8) ◽  
pp. 1401
Author(s):  
W.S. Metcalf
Keyword(s):  
Optimal Bandwidth

scholarly journals The Westerbork Flexible Filterbank Backend

1996 ◽  
Vol 160 ◽  
pp. 17-18 ◽  
Author(s):  
Marco Kouwenhoven ◽  
Lodie Voûte ◽  
Michiel van der Klis ◽  
Hans Weggemans ◽  
Will Deich ◽  
...  
Keyword(s):  
Time Constant ◽  
Radio Telescope ◽  
Dispersion Measure ◽  
Optimal Bandwidth ◽  
Channel Bandwidths

The Westerbork Synthesis Radio Telescope (WSRT) has recently been fitted with a new backend designed for pulsar detection. This backend is a filterbank with 32 channels, for both the X and Y polarised signals. A novel feature is that the channel bandwidths are digitally tunable between 6.25 kHz and 2.8 MHz (Vasisht et al. in preparation). The time constant of the integration which follows detection can be digitally set at values between circa 50 ms and 10μS. For each observing frequency and each pulsar (with a known dispersion measure) we can choose an optimal bandwidth and signal smoothing.

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