A radial-basis function neural network (RBFNN) has been used for modeling the dynamic nonlinear behavior of an RF power amplifier for third generation. In the model, the signal’s envelope is used. The model requires less training than a model using IQ data. Sampled input and output signals were used for identification and validation. Noise-like signals with bandwidths of 4 and 20 MHz were used....

The issue of how to measure magnetic induction fields generated by various power line configurations, when there are several power lines that run across the same exposure area, has become a matter of interest and study within the Regional Environment Protection Agency of Friuli Venezia Giulia (ARPA FVG). In classifying the various power line typologies the definition of double circuit line was ...

We present observations from empirical measurements of a low power wireless technology. Our observations provide insights in to the behavior of wireless links for traffics with small and long inter-packet durations. We explore the reasons for well known phenomena such as link asymmetries and correlated packet losses. Our observations are also applicable to similar wireless technologies such as ...

by Liou in Fig. 8 of Ref. 4, namely, elevation angle e = 60°, wavelength X = 0.7 yum, mode radius am = 4 Aim, and refractive index m = 1.310. The phase functions P(O,4) are not normalized and are shown as a function of the scattering angle 0 in different 4)-planes. The azimuthally averaged phase function is also shown by the solid line. One of the prominent differences between the present phase...

This paper provides the theoretical basis for the measurement of reactive and distortion powers from the wavelet transforms. The measurement of reactive power relies on the use of broad-band phase-shift networks to create concurrent in-phase currents and quadrature voltages. The wavelet real power computation resulting from these 90 phase-shift networks yields the reactive power associated with...

The impedance characteristics of household-appliances and power-line channels in the Japanese environment are measured in the high-frequency band, i.e., from 70to 35MHz. The transfer function of the channels is also measured and these results are shown. The powerline channel can be treated as a distributed constant circuit at the high frequency band. In this paper, the distributed constants of ...

In a specially designed radiation force balance (RFB), low-frequency pulse modulation of the incident ultrasound allows high-accuracy measurement of time-averaged spatially-integrated ultrasound power radiated into a reflectionless water load. Errors characteristic of force sensors are precluded by operating the RFB as a force comparator, without directly measuring force. Equipped with purpose-...