نتایج جستجو برای: lowpass filter
تعداد نتایج: 123412 فیلتر نتایج به سال:
As optical performance monitoring (OPM) requires accurate and robust solutions to tackle the increasing dynamic complicated network architectures, we experimentally demonstrate an end-to-end signal-to-noise (OSNR) estimation method based on convolutional neural (CNN), named OptInception. The design principles of proposed scheme are specified. idea behind combination Inception module finite impu...
This paper shows how to design good biorthogonal FIR filters for wavelet image compression by balancing the space and frequency dispersions of analysis and synthesis lowpass filters. A quality metric is proposed which can be computed directly from the filter coefficients. By optimizing over the space of FIR filter coefficients, a filter bank can be found which minimizes the metric in about 60 s...
The electrocardiogram (ECG) signal carries vital information related to cardiac activities. While measuring ECG using electrodes, the is contaminated with powerline interference (PLI) from harmonics, baseline wandering (BW), motion artefacts (MA) and high frequency (HF) noise. extraction of signal, without loss useful noisy environment, required. Therefore, selection implementation an efficient...
In analysis of fMRI data, highly sensitive detection of activated voxels is needed. The high noise levels in typical fMRI data makes this impossible to achive without pooling data from several voxels before the signal detection. The most common approach, applied in for instance SPM [1], is to employ spatial lowpass filtering (using a fixed filter kernel) of the data prior to the detection of ac...
The modern microwave and millimeter wave communication system demands good filtering characteristics with compact sizes. In this paper the attention has been given towards the design of a good elliptical lowpass filter with sharp transition between passband and stopband, negligible passband insertion loss and wide stop band. A new defected ground structure (DGS) consisting of two square slots c...
This paper aims to present fingerprint image enhancement by using directional circular raised cosine filters which are implemented using a radial component and an angular component. It has been compared with the common filters used for bandpass filtering, i.e. circular Gabor filters and Log-Gabor filters at the same bandwidth. The experimental results have found that the circular raised cosine ...
A new method of designing continuous-time monolithic filters derived from well known voltage controlled oscillators (VCOs) is introduced. These VCOderived filters are capable of operating at very high frequencies in standard CMOS processes. Prototype lowpass and band-pass filter designed in a TSMC 0.25 μm process are discussed. Simulation results for the low-pass filter designed for a cutoff fr...
A transformation called current-mode linear transformation (CMLT) and its filter applications using multiple output second-generation current conveyors (MOCCIIs) are presented. The systematic method is developed to realize CMLT MOCCII-based filters efficiently. Based on the proposed design tables, we can synthesize highorder current-mode all-pole and elliptic filters with MOCCIIs, grounded resi...
The spurious-free dynamic range (SFDR) of a MOSFET–C filter can be increased greatly by generating its tuning voltage with a charge pump. In this paper, we apply this technique to build a Sallen-and-Key lowpass filter with a pole frequency of 24 MHz and a pole Q of 3. It has an SFDR better than 50 dB and consumes 16 mW from a 3.3 V supply. Implemented with a doublepoly triple-metal 0.6m CMOS pr...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید