Radar Waveform Component

Use the Radar Waveforms component to define the waveform for a particular beam or all beams on a Multifunction radar.

Pulse Definition Parameters	Description
PRF, Unambiguous Range, or Unambiguous Velocity	Select one parameter to control and enter its value. STK will derive the values of the other two parameters from the parameter that you control. The default parameter is PRF, with a default value of 1.0 kHz. The Velocity is ambiguous where the true target velocity is greater than the unambiguous velocity value computed by radar. The Range is ambiguous where the true target range is greater than the unambiguous range computed by radar. Pulse Doppler radars are generally ambiguous in range and Doppler. The unambiguous range is given by c/2fR, where c is the speed of light and fR is the PRF. The Unambiguous Velocity constraint denies access when the velocity is ambiguous (i.e., it enforces a high PRF mode). The Unambiguous Range constraint denies access when the range is ambiguous (i.e., it enforces a low PRF mode). Thus, instead of specifying a fixed PRF value, you may want to specify a target range or velocity that requires unambiguous data.
Pulse Width or Duty Factor	Select one parameter to control and enter its value. STK will derive the value for the other parameter. Pulse Width. The width of the transmitted pulse (the uncompressed RF bandwidth can also be taken as the inverse of the Pulse Width). Duty Factor. The duty cycle of a radar beam is the ratio of the pulse width to the pulse-repetition period. The default value for Pulse Width is 0.1 microseconds.
Number of Pulses	Enter the number of pulses in the modulating pulse sequence. This value is only used for signal Power Spectral Density (PSD) analysis. The number of pulses does not affect Maximum Pulses on the Pulse Integration tab.

Pulse Definition Parameters

Description

PRF, Unambiguous Range, or Unambiguous Velocity

Select one parameter to control and enter its value. STK will derive the values of the other two parameters from the parameter that you control. The default parameter is PRF, with a default value of 1.0 kHz.

The Velocity is ambiguous where the true target velocity is greater than the unambiguous velocity value computed by radar. The Range is ambiguous where the true target range is greater than the unambiguous range computed by radar.
Pulse Doppler radars are generally ambiguous in range and Doppler. The unambiguous range is given by c/2fR, where c is the speed of light and fR is the PRF.
The Unambiguous Velocity constraint denies access when the velocity is ambiguous (i.e., it enforces a high PRF mode). The Unambiguous Range constraint denies access when the range is ambiguous (i.e., it enforces a low PRF mode).

Thus, instead of specifying a fixed PRF value, you may want to specify a target range or velocity that requires unambiguous data.

Pulse Width or Duty Factor

Select one parameter to control and enter its value. STK will derive the value for the other parameter.

Pulse Width. The width of the transmitted pulse (the uncompressed RF bandwidth can also be taken as the inverse of the Pulse Width).
Duty Factor. The duty cycle of a radar beam is the ratio of the pulse width to the pulse-repetition period. The default value for Pulse Width is 0.1 microseconds.

Number of Pulses

Enter the number of pulses in the modulating pulse sequence. This value is only used for signal Power Spectral Density (PSD) analysis.

The number of pulses does not affect Maximum Pulses on the Pulse Integration tab.

Specs Parameters	Description
Frequency or Wavelength	Select one parameter to control and enter its value. STK will derive the value for the other parameter. This option is available only for a Monostatic radar or a Bistatic transmitter radar.
Power	The peak output power of the transmitter has a default value of 30 dBW. This option is available only for a Monostatic radar or a Bistatic transmitter radar.