How to create a UWB pulse with matlab?

Can someone teach me how to create a USB pulse with Matlab?

      % Pulse parameters
      pulse.type = 0; % 0 = Gaussian
      pulse.width = 1.4e-9; %
      [pulse.xt, BW10dB] = uwbPulse(pulse.type, pulse.width, Fs);
      txParam.pulse = pulse;

I need to write that function "uwbPulse" given pulse.type, pulse.width and Fs.

Thanks.

Credit: It is from a masters thesis of an MIT student. http://dspace.mit.edu/bitstream/handle/1721.1/42022/226372008.pdf

Fs is defined somewhere else, like: Fs = 1/(0.4e-9);

[Oleg Komarov]

It would be quicker to ask the author directly.

Answer 1

[George]

I wrote email to his last publicly available address (a phd student @stanford) - but got no reply.

Answer 2

[Lucky Nindya Palupi]

You can use this equation G(x)=1/√(2πσ^2 ) e^((-x^2)⁄2) σ^2 This pulse is often used in UWB systems because its shape is easily generated.