The excitation is a 1-V peak Gaussian pulse
for all time-domain results presented in the following.
2 shows the relationship between the reflectance and the Gaussian pulse
shape of the reflected signal.
In this case, we study the process for short fiber lengths where the efficiency of the process is high for the nonlinearity parameter values of R = 0.6 (Gaussian pulse
) and R = 0.4 (secant-hyperbolic pulse).
In Figure 10(a), both the input signals "A" and "C" are in binary state "0" whereas the input "B" is in binary state "1," and these are represented by corresponding Gaussian pulses
. In this condition, according to the simulation results, the sum of the input signals is in binary state "1" and thus this is represented by the Gaussian pulse
of wavelength 1557 nm and as the carry is in binary state "0," this is represented by the Gaussian pulse
of wavelength 1552 nm.
If the incident pulse is assumed to be Gaussian pulse
, the reflected group delay of the
Typical excitation signals used to determine the suitability of wide-band antennas to transmit pulsed signals are those based on the higher order derivative of the Gaussian pulse
. In this context, the antenna excitation signal has been selected to be the fifth derivative of the Gaussian pulse
After 6 [[tau].sub.inv] delay, delay between main clock and (De_Clk), the NMOS [M.sub.1] and [M.sub.2] turn on and discharge the node Pulse_O/P to ground so the Gaussian pulse
The Gaussian pulse
shape used is described as in equation (1),
Shamsadini, "Compact CMOS IR-UWB transmitter using variable-order Gaussian pulse
generator", Electronics Letters, vol.
The transmitted signal is a Gaussian pulse
with a bandwidth of 5 GHz and its shape in the time domain is shown in Figure 3.
When the distance between nodes is 1500 mm without any obstacles in the indoor space, the main lobe of impulse response was distorted like a third order Gaussian pulse
, where the second wave troughs amplitude was larger than the first trough.