We present an adaptive reduced-rank signal processing technique for airborne phased array radar applications. The proposed method performs dimensionality reduction by using a reduced-rank switched joint interpolation, decimation and filtering algorithm (RR-SJIDF). A multiple-processing-branch (MPB) framework, which contains a set of jointly optimized interpolation, decimation and filtering unit...

The steps involved in the design of decimation filter for high-resolution sigma-delta (ΣΔ) A/D converter are described. The design of a decimation filter is proposed that employs three stage – one Cascaded Integrator Comb filter (CIC) followed by two finite impulse response (FIR) filters. This approach eliminates the need for multiplication, requires a maximum clock frequency equal to the sampl...

A new pixel decimation technique based on a set of the pixel patterns for block motion vector estimation is presented. FiDr uniform pixel decimation, regular patterns are used for computing the matcliing criterion to estimate the motion vector. The results can easily be misled by some image textures. Tlius, in this paper, we define some “most representative pixel patterns” and make the sclcctio...

In this work, we propose a decimator filter able to deal with GSM, WCDMA, WLAN 802.11(a/b/g) and WiMAX By taking into account the operating frequency, bandwidth and intermodulation effects, an appropriate input sampling frequency is selected. Meanwhile, with the parameters of blocking and interference profile, Passband limits and Passband ripple, for all this radio communication standard, we ar...

We present a new mesh decimation framework which is based on the probabilistic optimization technique of Multiple-Choice algorithms. While producing the same expected quality of the output meshes, the Multiple-Choice approach leads to a significant speed-up compared to the wellestablished standard framework for mesh decimation as a greedy optimization scheme. Moreover, Multiple-Choice decimatio...

In this paper, the problem of estimating the frequencies, dampings, amplitudes and phases of closely spaced complex damped exponentials in the presence of noise is considered. In several papers, decimation is proposed as a way to increase the performance of subspacebased parameter estimation methods, in the case of oversampling [1][2][3]. In this paper, a novel extension of the HTLS-method [4] ...

In this paper, the designing of decimation filter for sigma-delta (∑-∆) ADC having different oversampling ratio (OSR) is described. The decimation filter perform the operation of down sampling of a high frequency, low resolution signal to Nyquist rate, high resolution digital output. The design of a decimation filter is projected that employs IIR-FIR structure; second order Cascaded Integrator ...

This paper introduces a non-parametric sequential frame decimation algorithm for image sequences in low-memory streaming environments. Frame decimation reduces the number of input frames to increase pose and structure robustness in Structure and Motion (SaM) applications. The main contribution of this paper is the introduction of a sequential low-memory work-flow for frame decimation in embedde...

Software defined radio has find important place in modern communication systems where majority of signal processing is performed in the digital domain using programmable DSPs.Digital down conversion (DDC) is one of the core technologies in SDR, as well as an important component of digital intermediate frequency receiver system. DDC use CIC decimation filters for sample rate decimation. CIC deci...