A low-power and wideband RF-to-baseband (BB) current-reuse receiver (CRR) front-end utilizing both a $1/f$ noise cancellation (NC) technique an active inductor (AI) is proposed tuned to operate from 1 GHz 1.7 for L-Band applications, ...

ABSTRACT Active noise control is a noise reduction technique introducing a canceling anti-noise wave. Recently, it is widely used in industrial operations, manufacturing, and consumer products. In many cases, periodic noise occurs because most applications include engines, compressors, motors, fans, and propellers which have reciprocating motion. The noise usually contains tones at the fundamen...

In this paper, we present the development and evaluation of an integrated active noise control (ANC) communication headsets. This integrated system provides cancellation of noise that corrupted both the transmitted near-end speech and the received far-end speech. It utilizes an adaptive feedback ANC filter to reduce acoustic noise that corrupts the far-end signal inside the ear cups of headsets...

In wireless communications, spatial (via antenna arrays) and temporal (excess bandwidth) diversity may be exploited to simultaneously equalize a user of interest while canceling or reducing (cochannel) interfering users (CCI). This can be done using the Interference Canceling Matched Filter (ICMF) which we introduced previously. The ICMF depends on the channel for the user of interest, to be es...

Fine-grained geographic localization of nodes is essential for an extensive range of distributed sensor applications. To compute geographic coordinates, localization algorithms commonly use pair-wise distance estimates between nodes. In this paper we present a noise tolerant acoustic ranging mechanism for wireless sensors that employs digital signal processing techniques on standard MICA hardwa...

Pre-processing of Speech Signal serves various purposes in any speech processing application. It includes Noise Removal, Endpoint Detection, Pre-emphasis, Framing, Windowing, Echo Canceling etc. Out of these, silence/unvoiced portion removal along with endpoint detection is the fundamental step for applications like Speech and Speaker Recognition. The proposed method uses Probability Density Fu...

A new on-line cancellation path modeling signal for active noise control is proposed in this paper. The signal is based on the spectrum of the disturbance signal, and is especially useful for the cancellation path modeling in active noise control when the disturbance signal is tonal. It is shown that using the proposed signal as the perturbation signal in modeling can significantly reduce the m...

This paper deals with configuration of an algorithm to be used in a speech-passing angle grinder noise-canceling headset. Angle grinder noise is annoying and interrupts ordinary oral communication. Meaning that, low SNR noisy condition is ahead. Since variation in angle grinder working condition changes noise statistics, the noise will be nonstationary with possible jumps in its power. Studies ...

We consider a coupled system of viscous Burgers’ equations with appropriate initial values using the decomposition method. In this method, the solution is calculated in the form of a convergent power series with easily computable components. The method does not need linearization, weak nonlinearity assumptions or perturbation theory. The decomposition series solution of the problem is quickly o...