range2bw

Convert range resolution to required bandwidth

Syntax

bw = range2bw(rngres)

bw = range2bw(rngres,c)

Description

Note

The use of range2bw is not recommended. Use rangeres2bw instead.

bw = range2bw(rngres) returns the bandwidth needed to distinguish two targets separated by a given range. Such capability is often referred to as range resolution. The propagation is assumed to be two-way, as in a monostatic radar system.

bw = range2bw(rngres,c) specifies the signal propagation speed.

Input Arguments

rngres — Target range resolution

positive scalar | MATLAB^® array of positive real values

Target range resolution in meters, specified as a scalar or a MATLAB array of positive real values.

Data Types: double

c — Signal propagation speed

speed of light (default) | positive scalar

Signal propagation speed, specified as a positive scalar. Units are in meters per second.

Data Types: double

Output Arguments

bw — Required bandwidth

positive scalar | MATLAB array of positive real values

Required bandwidth in hertz, returned as a MATLAB array of positive real values. The dimensions of bw are the same as those of rngres.

Tips

• This function assumes two-way propagation. For one-way propagation, you can find the required bandwidth by multiplying the output of this function by 2.

Algorithms

The function computes c/(2*rngres).

References

[1] Skolnik, M. Introduction to Radar Systems, 3rd Ed. New York: McGraw-Hill, 2001.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

Does not support variable-size inputs.

Version History

Introduced in R2012b