SNR estimate from radar equation
SNR = radareqsnr(lambda,tgtrng,Pt,tau)
SNR = radareqsnr(...,Name,Value)
estimates
the output signaltonoise ratio (SNR) at the receiver based on the
wavelength SNR
= radareqsnr(lambda
,tgtrng
,Pt
,tau
)lambda
in meters, the range tgtrng
in
meters, the peak transmit power Pt
in watts,
and the pulse width tau
in seconds.
estimates
the output SNR at the receiver with additional options specified by
one or more SNR
= radareqsnr(...,Name,Value
)Name,Value
pair arguments.

Wavelength of radar operating frequency in meters. The wavelength is the ratio of the wave propagation speed to frequency. For electromagnetic waves, the speed of propagation is the speed of light. Denoting the speed of light by c and the frequency in hertz of the wave by f, the equation for wavelength is: $$\lambda =\frac{c}{f}$$ 

Target range in meters. When the transmitter and receiver are
colocated (monostatic radar), 

Transmitter peak power in watts. 

Single pulse duration in seconds. 
Specify optional
commaseparated pairs of Name,Value
arguments. Name
is
the argument name and Value
is the corresponding value.
Name
must appear inside quotes. You can specify several name and value
pair arguments in any order as
Name1,Value1,...,NameN,ValueN
.

Transmitter and receiver gain in decibels (dB). When the transmitter
and receiver are colocated (monostatic radar), Default: 20 

System loss in decibels (dB). Default: 0 

Target radar cross section in square meters. The target RCS is nonfluctuating. Default: 1 

System noise temperature in kelvin. The system noise temperature is the product of the effective noise temperature and the noise figure. Default: 290 kelvin 

The estimated output signaltonoise ratio at the receiver in
decibels. 
[1] Richards, M. A. Fundamentals of Radar Signal Processing. New York: McGrawHill, 2005.
[2] Skolnik, M. Introduction to Radar Systems. New York: McGrawHill, 1980.
[3] Willis, N. J. Bistatic Radar. Raleigh, NC: SciTech Publishing, 2005.
noisepow
 phased.ReceiverPreamp
 phased.Transmitter
 radareqpow
 radareqrng
 systemp