matched filter of chirp signals In simulating linear frequency modulated (LFM) chirp signals, with the parameters: 
Pulse width, bandwidth. 

I find the matched filter response to be this: 



In particular, there is a increase in the energy over the right side of the plot. 

My question is, is this normal, or should the tapering be going down?
I found that the reason for the spike on the right is due to the inclusion of pulse width of time along the time axis.