WSF_POWER_EFFECT

effect WSF_POWER_EFFECT

effect WSF_JAMMER_POWER_EFFECT

...
  effect <effect-name> WSF_POWER_EFFECT
     electronic_warfare_effect Commands
     WSF_REPEATER_EFFECT Commands
     WSF_RADIUS_EFFECT Commands
     jamming_modulation_gain <db-ratio-value>
     jamming_power_gain <db-ratio-value>
     jamming_to_signal_gain_table ... end_jamming_to_signal_gain_table
     signal_power_gain <db-ratio-value>
     receiver_noise_power_gain <db-ratio-value>
     system_type_data <system-type-name> ... end_system_type_data
  end_effect
...

Overview

This base effect type can be included in the electronic_protect or electronic_attack technique block as one of the many available effects for a given technique. The commands listed below are the base-type commands that can be specified in the effect block for this effect type.

Commands

jamming_modulation_gain <dbratio-value>

modulation_gain <dbratio-value>

Specifies a mitigating adjustment to the effective jamming gain level created by this technique. This adjustment modifies the normally-determined processed jamming power. If this input is specified within the system_type_data input block then it is specific to a system-type, otherwise this input is defined as the ‘default’ data to use for undefined system-types in the system_type_data.

Default: 0.0 dB

jamming_to_signal_gain_table … end_jamming_to_signal_gain_table

jamming_to_signal_gain_table … end_jamming_to_signal_gain_table

This command provides the means to define a gain factor that is dependent on the J/S ratio, where J is the jamming power and S is the signal power in the receiver. Linear interpolation is used to derive the values for intermediate J/S ratios. J/S values outside the range of the table use the value from the appropriate endpoint (i.e., extrapolation is not performed). If this input is specified within the system_type_data input block then it is specific to a system-type, otherwise this input is defined as the ‘default’ data to use for undefined system-types in the system_type_data.

The format of the table is:

jamming_to_signal_gain_table
   jamming_to_signal <j_to_s-value-1> <gain-value-1>
   jamming_to_signal <j_to_s-value-2> <gain-value-2>
      ...
   jamming_to_signal <j_to_s-value-n> <gain-value-n>
end_jamming_to_signal_gain_table

The following rules must be observed:

• The entries must be in order monotonically increasing J/S value.

• There must be at least two entries.

jamming_power_gain <dbratio-value>

power_gain <dbratio-value>

Specifies a mitigating adjustment to the effective jamming power level created by this technique. This adjustment modifies the normally-determined physical jamming power. If this input is specified within the system_type_data input block then it is specific to a system-type, otherwise this input is defined as the ‘default’ data to use for un-defined system-types in the system_type_data.

Default: 0.0 dB

signal_power_gain <dbratio-value>

Specifies a mitigating adjustment to the effective signal level created by this technique. This adjustment modifies the normally-determined received signal power. If this input is specified within the system_type_data input block then it is specific to a system-type, otherwise this input is defined as the ‘default’ data to use for undefined system-types in the system_type_data.

Default: 0.0 dB

receiver_noise_power_gain <dbratio-value>

Specifies a mitigating adjustment to the effective receiver noise power level created by this technique. This adjustment modifies the normally-determined noise power with a multiplier that is applied for signal-to-noise calculations. If this input is specified within the system_type_data input block then it is specific to a system-type, otherwise this input is defined as the ‘default’ data to use for undefined system-types in the system_type_data.

Default: 0.0 dB

system_type_data <system-type-name> … end_system_type_data

Input block to provide the system type (e.g., SENSOR-TYPE, JAMMER-TYPE) specific data necessary to implement this technique for a given system type. Default data can be set up for system types not defined using the “default” string as the system type.

system_type_data <system-type-name>
   WSF_REPEATER_EFFECT Commands
   WSF_RADIUS_EFFECT Commands
   jamming_modulation_gain <db-ratio>
   jamming_power_gain <db-ratio>
   signal_power_gain <db-ratio>
   receiver_noise_power_gain <db-ratio>
end_system_type_data

<system-type-name>
   A string input of the system-type the following data applies to, valid values are [system-type-name | "default"]. Default data is used for unspecified system-types and if not defined no effect will be applied for the given system-type.

Note

This input is most often used by electronic_attack definitions to specify different sensor-type data. It may be used by an electronic_protect definitions to specify jammer-type data inputs, but most often data is just entered outside this input block and is applied against all jammer-types for electronic_protect effects.