Link Functions

Link Module

Directory List

Coverage Demos/Optical Demos/RF
Ladar LinkDesign LinkUtilities
Optical RF Radar


Compute the boresight matrix or attitude quaternion.
Generate dynamical plots of antenna patterns.
Determine ground station visibility for spacecraft position(s).
Determines if a satellite is visible to an ISL.
Determines the visibility between the points in r2 and r1.

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Create an optical link budget for a Pluto mission.

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Link analysis for an earth orbiting spacecraft.
Link analysis for a Mars mission
Exanples of link analysis from the reference
Design a radar
Voyager spacecraft link budget

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Solves one form of the laser radar equation. Computes probability of
Computes required Ladar transmit power.

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Performs a link analysis for a satellite.
Performs a link budget for a satellite.

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Computes the bit error probability given C/N and the bit rate.
Compute the carrier to noise ratio.
Compute the number of contacts for a constellation with ground users.
Compute maximum distances between satellites in a constellation.
Power conversion to decibels. dB = 20 log10(s).
Signal conversion to decibels. dB = 10 log10(s).
Convert decibels to power.
Convert dBW (decibels-Watts) to nanowatts.
Convert dBW to picowatts.
Computes communications sytems data rates
Finds Doppler blind speeds.
Doppler shift
Function called by fzero to compute the carrier to noise ratio.
Right hand side for probability of false alarm computation.
Outputs the frequencies for specified bands of electromagnetic radiation.
Converts frequency to wavelength.
Spectral efficiency of different modulation schemes
Computes and plots multiple bit error rates on the same plot.
Computes semi-major axis from orbital period
Probability of detection for a diffuse target.
The Shannon information theorem relating S/N and C/B.
Convert temperature to power.
Outputs the wavelengths for bands of electromagnetic radiation.
Converts wavelength to frequency.
yB computation used as part of the probability of detection algorithm.

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Computes optical background noise for various sources.
Create an optical link budget.
Compute the receiver noise density.
Compute the signal to noise ratio.

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Antenna gain.
Antenna 3 dB angle.
Antenna 3 dB gain.
Compute an antenna gain pattern as a function of the incidence angle.
Computes the link attenuation due to gas.
Computes the depointing loss
Computes the free space loss.
Computes the polarization loss.
Computes the link attenuation due to precipation.
Computes the noise power required from bandwidth and noise temperature.
Computes the power received by an antenna.
Compute the temperature of an antenna on the ground.
Compute the temperature of an attenuator.
Noise temperature of the Moon. Constant at 250 deg-K.
Compute the noise of a cascade series.
Noise temperature of a planet.
Compute the noise temperature of a receiver attached to an antenna.
Brightness temperature of the sky.
Noise temperature of the sun.

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Compute clutter for land or sea.
Compute clutter area.
Convert from dBW to power.
Convert from dBm to power.
Convert from dBsm to m^2
Compute the number of elements needed to prevent grating lobes.
Generate a phased array
Convert from power to dB watts.
Convert from power to dB milliwatts
Computes system noise.
Compute radar accuracy.
Computes radar crossections.
Solves the radar equation. Can compute range or power. This function assumes
Solves the radar equation. Can compute range or power. This function assumes
Computes signal to noise ratios from the radar equation.
Generates a pulse train.
Computes the radar signal to noise ratio for a pulsed monostatic radar.
Computes thermal noise for radar or any communications system.
Parameters for different radar windows.
Convert m^2 to dBsm
Computes radar tracking accuracy.

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SVN Revision: 42425

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