Abstracr-The problem of delay estimation in the presence of multipath is considered. It is shown that the extended Kalman filter (EKF) can be used to obtain joint estimates of time-of-arrival and multipath coefficients for deterministic signals when the channel can be modeled by a tapped-delay line. Simulation results are presented for the EKF joint estimator used for synchronization in a direc...

A feedforward control algorithm for active noise control based on the recursive estimation of a generalized finite impulse response (FIR) filter is presented in this paper. The feedforward control algorithm is applied to a commercial air ventilation silencer to provide active noise compensation in an airduct. A generalized FIR filter has the same linear parameter structure as a taped delay FIR ...

This paper describes the use of digitally set delay lines in conjunction with MUTEX time comparison circuits, to measure on-chip signal path timing differences to accuracies of better than 10ps. Three methods of time measurement are described. The first, which uses parallel MUTEXs with a tapped delay line, is analogous to a flash A/D converter. The second one is similar to a successive approxim...

When thoracic duct lymphocytes (TDL) from mice given sheep erythrocytes (SRC) 1 day previously (1-day-primed TDL) were placed in microcultures with antigen for 5-6 days, the cells failed to produce antibody to SRC, but responded well to horse erythrocytes (HRC); reciprocal results were obtained with TDL from HRC-injected mice. The specific unresponsiveness of the TDL was observed despite the pr...

The paper first presents the integration options of what we call the Timing Description Language (TDL) with Mathworks' Simulink tools. Based on the paradigm of fixed logical execution time (FLET) as introduced by Giotto [2], TDL enhances Giotto towards a component architecture for real-time control applications [9]. The challenge is to provide appropriate visual and interactive modeling capabil...

Nonlinearity mitigation in optical fiber networks is typically handled by electronic Digital Signal Processing (DSP) chips. Such DSP chips are costly, power-hungry and can introduce high latencies. Therefore, techniques investigated which more efficient both power consumption processing cost. One such a machine learning technique reservoir computing, photonic chip be trained on certain tasks, w...

In this paper, we present a Link-16-based tactical data link (TDL) simulator with cognitive antijamming capability (CAJC). CAJC improves antijamming capability of existing TDL by adding the cognitive radio (CR) spectrum sensing-based jammer detection. In the presented TDL, each terminal that senses (or detects) the jammer signal can avoid the jammer spectrum opportunistically. For jammer signal...

To investigate the clonal relationship between follicular lymphoma (FL) and transformed diffuse lymphoma (tDL), we examined the expression of tumor idiotype, immunoglobulin (Ig) gene rearrangements and sequence of Ig variable genes in paired tissue specimens. All 16 cases analyzed expressed surface immunoglobulin (sIg) on both the FL and the tDL, though the immunophenotype of one case of FL cou...

A novel mannose-binding tuber lectin with in vitro antiproliferative activity towards human cancer cell lines and antiviral activity against HSV-II was isolated from fresh tubers of a traditional Chinese medicinal herb, Typhonium divaricatum (L.) Decne by a combined procedure involving extraction, ammonium sulfate precipitation, ion exchange chromatography on DEAE-SEPHAROSE, CM-SEPHAROSE and ge...

| We address pruning and evaluation of Tapped-Delay Neural Networks for the sunspot benchmark series. It is shown that the generalization ability of the networks can be improved by pruning using the Optimal Brain Damage method of Le Cun, Denker and Solla. A stop criterion for the pruning algorithm is formulated using a modiied version of Akaike's Final Prediction Error estimate. With the propos...