We thus continue to explore the space of models with other plausible nonlinear modifications to the HRC: the non-multiplicative nonlinearity model, an unrestricted nonlinearity model, which is a circuit-motivated renaming of the former "explicit multipoint correlator model," and an extra-input nonlinearity model.
First, note that the non-multiplicative nonlinearity model inherits the HRC's assumption that each nonlinear unit only acts upon the low-pass filtered signal from one point in space and the high-pass filtered signal from the neighboring point.
The Rapp power amplifier (PA) nonlinearity model [33] is considered as seen in Figure 2.
We assume that the DA converter may exceed the HPA amplitude saturation level as depicted in Figure 3. Figure 2 Nonlinearity model.
Amplitude compression Daly [14] proposes a simplified local amplitude nonlinearity model as a function of pixel location, which assumes perfect local adaptation (Section 3.1).
Daly [14] has developed a simplified local amplitude nonlinearity model in which the adaptation level of a pixel is merely determined from that pixel.
It focuses on linearization of the basic active gm-boosted common gate (CG) LNA circuit by exploring the nonlinearity coefficients using the generalized nonlinearity model.
The paper introduces a new ADC static nonlinearity model focusing on SAR ADC which is labelled the unified ADC nonlinearity error model.
We consider that the transmitted signal from a source node passes through a single-hop MIMO channel H0, and R multihop MIMO relaying channels H1,…,H R, associated with R fixed or mobile relaying nodes, to the destination node as shown in Figure 2. Figure 2 HPA nonlinearity model for MIMO OFDM relaying channel.
A general nonlinearity model is proposed, the generalization lies in three aspects: (1) the nonlinearities include both state and delayed state information; (2) the nonlinearities satisfy sector-bounded conditions; (3) apart from the lower and upper bounds, the probability information of the nonlinearities belonging to different sector bounds is utilized.
(A ) Diagram of the front-end nonlinearity model.
