The wave union (WU) method is a well-known in time-to-digital converters (TDCs) and can improve TDC performances without consuming extra logic resources. However, an earlier study concluded that the WU not suitable for UltraScale field-programmable gate array (FPGA) devices, due to more severe bubble errors. This article proves otherwise presents new strategies pursue high-resolution TDCs Xilin...

In this paper, an optimal approach to design wideband Tapped-Delay Line(TDL) array antenna is proposed. This approach lets us control the array angular and frequency response over a wide frequency band. To this end, some design restrictions are defined and a multi-objective optimization problem is constructed by putting the individual restrictions together. The optimal weights of the TDL proces...

A radio frequency (RF) photonic filter is experimentally demonstrated using an optical tapped delay line (TDL) based on an optical frequency comb and a periodically poled lithium niobate (PPLN) waveguide as multiplexer. The approach is used to implement RF filters with variable bandwidth, shape, and center-frequency.

This paper presents a new approach for time series prediction using local dynamic modeling. The proposed method is composed of three blocks: a Time Delay Line that transforms the original time series into a set of N −dimensional vectors, an Information-Theoretic based clustering method that segments the previous set into subspaces of similar vectors and a set of single layer neural networks tha...

The Field Programmable Gate Array (FPGA) structure poses several constraints that make the implementation of complex asynchronous circuits such as Time-Mode (TM) almost unfeasible. In particular, in Logic (PL) devices, FPGAs, operation logic is usually synchronous with system clock. However, it can happen a very high-performance specifications demands to abandon this paradigm and follow an impl...

The temporal difference limen (TDL) can be measured with noninvasive electrical ear canal stimulation. The objective of the study wa to determine the role of preoperative TDL measurements in predicting patients' speech perception after cochlear implantation. We carried out a retrospective chart analysis of fifty-four cochlear implant (CI) patients with preoperative TDL and postoperative bisylla...

This paper presents design and implementation of TDC based on time stamping using current balanced logic (CBL) buffer in 0.35 μm CMOS technology. The CBL logic buffer provides smaller delay compared to widely used current starved inverter, allowing better resolution in a given technology node. The CBL buffer based tapped delay line (TDL) provides accurate reference timing signals for time stamp...

We focus on the problems of accurate time delay estimation, design training pilots, and hybrid matrix optimization within large-scale antenna array Terahertz (THz) broadband communication system. In contrast to existing researches based narrow-band arrays, we hereby shed light estimation arrays. THz systems, data symbol duration is relatively short when comparing with dimension array. signals r...

In this paper, global models of dynamic complex systems using the neural networks is discussed. The description of a complex system is given by a description of each system element and structure. As a model the multilayer neural networks with the tapped delay line (TDL), which have the same structure as a complex system, are accepted. Two approaches, a global model and a global model with the q...

This article proposes a new calibration method, called the mixed-binning (MB) to pursue high-linearity time-to-digital converters (TDCs) for light detection and ranging applications. The proposed TDCs were developed using tapped delay-line (TDL) cells in field-programmable gate arrays (FPGAs). With MB we implemented resolution-adjustable TDC showing excellent linearity Xilinx UltraScale FPGAs. ...