Pulse Repetition Interval Types

The types of pulse repetition interval are described in detail in this section.

The pulse repetition interval is said to be none if the pulse repetition interval is constant for all pulses generated.

The following parameters are used for this type:

Pulse Repetition Interval Start: It is defined as the pulse repetition interval of the starting pulse in the pattern. Valid values are from 0 to 1 second.

The following image illustrates a none pattern.

The pulse repetition interval is said to be bursted if the pulse repetition interval is constant for all the pulses generated within a given burst interval. The burst interval is preserved in partial bursts by increasing the PRI of the last pulse in the burst.

The following parameters are used for this type:

Pulse Repetition Interval Start: It is defined as the pulse repetition interval of the starting pulse in the pattern. Valid values are from 0 to 1 second.

Burst Interval: It is defined as the total duration of the pattern. Valid values are from 0 to 1 second.

Number of Pulses: It is defined as the number of pulses in the pattern. Valid values are from 1 to 1000.

The following image illustrates a bursted pattern.

The pulse repetition interval is said to be of linear type if the pulse repetition interval type creates a linearly increasing or decreasing pulse repetition interval pattern.

The following parameters are used for this type:

Pulse Repetition Interval Start: It is defined as the pulse repetition interval of the starting pulse in the pattern. Valid values are from 0 to 1 second.

Pulse Repetition Interval Stop: It is defined as the pulse repetition interval of the last pulse in the pattern. Valid values are from 0 to 1 second.

Number of Pulses: It is defined as the number of pulses in the pattern. Valid values are from 1 to 1000.

The following image illustrates a linear ramp pattern.

The pulse repetition interval is said to be stepped if the pulse repetition interval creates a stepped pulse repetition interval pattern.

The following parameters are used for this type:

Pulse Repetition Interval Start: It is defined as the pulse repetition interval of the starting step in the pattern. Valid values are from 0 to 1 second.

Pulse Repetition Interval Step: It is defined as the amount by which the pulse repetition interval changes from the current step to the next step in the pattern. Valid values are from 0 to 1 second.

Number of Steps: It is defined as the number of steps required to create a stepped pattern. Valid values are from 1 to 1000.

Pulses per Step: It is defined as the number of pulses present in each step in the pattern. Valid values are from 1 to 1000.

The following image illustrates a stepped pattern.

This type creates a user defined pulse repetition interval pattern. You can provide pulse repetition interval values for N number of pulses in the table. The last index in the table will be considered as the number of pulses in the pattern.

The following parameter is used for this type:

Pulse Repetition Interval: Specifies the pulse repetition interval that is applied to each pulse. You can vary the pulse repetition interval from pulse to pulse. Valid values are from 0 to 1 second.

To create a staggered pulse repetition interval table:

• Select Staggered from the Pulse Repetition Interval Type drop-down list box.
• Click the Add button to enter the pulse repetition interval values.
• Pulse repetition interval values can be removed by clicking Remove button.

The following image shows the UI selection for the staggered pulse repetition interval type.

The following image shows the pulse repetition interval pattern based on the table entries in the preceding image.