Technical data

DOC-01-TELAS-CRG-4 ASTi ACE Studio Components Reference Guide Rev.M

Pulse types 101 to 150 are called dwell1 to dwell 50. The spacing between pulses

(PRI) is modulated in a step like fashion. The length of time on each step is given

by the dwell time, and the number of steps is the dwell number plus one. (e.g., for

dwell5 there will be six steps.) The steps are evenly spaced, and the modulation

depth, as shown, gives their height.

The PRI time varies between

PRI Main x (1 - Modulation Depth)

and

PRI Main x (1 + Modulation Depth)

Figure 9: Dwell

The figure below shows the Random Dwell Pulse Type (Pulse types 151-199). The

random dwell is the same as the dwell, except that instead of stepping sequentially

through the levels it jumps randomly among them. The number of levels is given by

the Random Dwell number + 1 - i.e., Random Dwell 5 would jump through 6

different PRI modulation times.

In addition, there is a Random Dwell with no number (Pulse type 199). With this

pulse type, the PRI time jumps randomly throughout it's allowed range, staying at

each PRI time for a dwell time.

The allowed range for the random dwell is between

PRI Main x (1 - Modulation Depth)

and

PRI Main x (1 + Modulation Depth)

Figure 10: Random Dwell