Products/Services for Legendre Filter
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Active Filters - (70 companies)...filters produce no overshoot in response to an input step. They optimize rise and fall times. Legendre filters are designed to produce the maximum roll-off rate for a given order and a flat passband frequency response. References and Resources...Filter TypeFilter OrderFilter Characteristic -
Active Band Pass Filters - (29 companies)...in both the passband and the stopband. Gaussian filter. Gaussian filters produce no overshoot in response to an input step. They optimize the rise and fall times. Legendre filter. Legendre filters are designed to produce the maximum roll-off rate... -
Active Low Pass Filters - (32 companies)...the passband and the stopband. Gaussian filters produce no overshoot in response to an input step and optimize rise and fall times. Legendre filters are designed to produce the maximum roll-off rate for a given order and a flat frequency response... -
Passive Filters - (41 companies)Passive filters are implemented using only passive components such as resistors, capacitors and inductors. These filters do not produce any amplification of the input signal. Passive filters use only passive electronic components: resistors... -
Active Band Reject Filters - (8 companies)...and the stopband. Gaussian filter. Gaussian filters produce no overshoot in response to an input step and optimize the rise and fall times. Legendre filter. Legendre filters are designed to produce the maximum roll-off rate for a given order and a flat... -
Active High Pass Filters - (11 companies)...and the stopband. Gaussian filter. Gaussian filters produce no overshoot in response to an input step. They optimize the rise and fall times. Legendre filter. Legendre filters are designed to produce the maximum roll-off rate for a given order and a flat...
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EMI Filters and RFI Filters - (438 companies)Electromagnetic (EMI) filters and radio frequency interference (RFI) filters purify signals of unwanted noise by attenuating the high-frequency RFI (typically 150kHz and up) and passing the low frequency EMI. Electromagnetic interference (EMI...
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HEPA Filters and ULPA Filters - (158 companies)High-efficiency particulate air (HEPA) filters and ultra-low particulate air (ULPA) filters are designed to screen particles larger than 0.3 um High efficiency particulate air (HEPA) filters and ultra-low particulate air (ULPA) filters are air...
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Filter Wheels - (23 companies)Filter wheels hold and position multiple filters for various imaging applications such as machine vision and spectrophotometry. Filter wheels are used to position a selection of filters over a lens, or an array of lenses. Applications for filter...
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Laboratory Filters - (149 companies)Laboratory filters are used to remove particulates from samples in laboratory-scale applications. They consist of a filter medium and housing or holder that constrains and supports the filter media in the sample 's path. Image Credit: Sartorius...
Product News
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Avantier Inc.
Bandpass Filters Bandpass Filters. Bandpass filters are optical filters designed to transmit a defined spectral band while blocking or attenuating wavelengths outside that range. Depending on the application, the passband may be narrower than 1 nm for laser, fluorescence, or spectroscopy systems, or broad enough to span tens to hundreds of nanometers for imaging, sensing, and illumination. Bandpass filters typically use thin-film interference coatings on substrates such as optical glass, fused silica, sapphire... (read more) -
Harbory Filtration
Oil-Water Separation Filter Bag for Liquid Filter Product Overview. Harbory Filtration manufactures oil absorption filter bags using high-loft, melt-blown polypropylene or similar oleophilic media. The fibers attract oil and oil-based contaminants while allowing water to pass through. This selective absorption makes the bag highly effective in applications where oil must be removed without absorbing large volumes of water. The bags are available in standard sizes (#1, #2, #3, #4) and can be used as standalone absorbent bags or as filter bags... (read more)Browse Filter Media Datasheets for Harbory Filtration -
Filtertech, Inc.
ABS Absorption Filter Many rolling applications require the use of light oil in place of the typical water-soluble coolant. Traditionally clarification of the roll oils has been done with disposable cartridge filters or diatomaceous earth filters. These methods, while effective, are maintenance intensive and require disposable guard filters. To address these issues, Filtertech has developed the Model ABS Absorption Filter that is fully automatic and eliminates the need for any precoating or use of disposable filters... (read more)Browse Filtration Equipment Datasheets for Filtertech, Inc. -
Marki Microwave LLC
Prodigy™ Filter Designer Go from ordinary to extraordinary RF/microwave development with Prodigy TM Filter Designer. Generate instantaneous 3D FEM quality filter designs with Prodigy, the new automated filter design tool from Marki Microwave. Powered by advanced FEM modeling and machine learning techniques, Prodigy puts filter design into the customer 's hands. The Prodigy interface gives the user three variables to select the desired filter: topology, center frequency, and bandwidth. The interface then shows... (read more)Browse RF Filters and Microwave Filters Datasheets for Marki Microwave LLC -
Interpower
Filtered Inlets and Outlets Interpower 's IEC 60320 Filtered inlets and outlets are intended for computer, medical, general purpose, and/or custom indoor type equipment applications. The features include: IEC 60320 class I inlet or outlet; robust screw mount, nickel plated, shielded enclosure; quick disconnect terminals; general purpose filter or medical, low leakage current filter; UL, CSA, and VDE approvals; RoHS compliant. Over 4 million parts in-stock. No minimum order requirements, and same day shipments available... (read more)Browse Power Entry Modules Datasheets for Interpower -
Finder S.p.A. con unico socio
EXHAUST FILTER - for cabinets and switchboards Type 7F.03 Exhaust Filter for cabinets and switchboards - for external use. Time saving installation and maintenance. Air volume and sizes, depending on models. (read more)Browse Filter Media Datasheets for Finder S.p.A. con unico socio -
Richardson RFPD
Dielectric Filters for Avionics Transponders Band Pass Filters for Avionics Transponders. Optimized for flight-critical aviation systems TCAS, ADS-B, and Mode-S. Multiple families of filters supporting 978 MHz, 1030 MHz and 1090 MHz with various size, power, performance, and insertion loss trade-offs. All frequency bands in each filter family are interchangeable sharing a universal PCB footprint layout. Standard, off-the-shelf product. Available options include smaller sizes, multi-band passbands and customized performance (read more)Browse RF Filters and Microwave Filters Datasheets for Richardson RFPD -
Camfil
Dust Collector Filter Cartridges Independent lab tests demonstrate that Camfil dust collector filter cartridges capture more air pollutants and release more of those pollutants when pulsed, creating a safer, cleaner work environment with less maintenance. Whether used in Camfil or other brand dust collectors, our filters maintain a steady pressure drop that lasts through the lifetime of the filter. Independent lab tests demonstrate that Camfil filter cartridges capture more air pollutants and release more of those pollutants... (read more)Browse Dust Collectors and Dust Collector Filters Datasheets for Camfil -
Anatech Electronics, Inc.
High Pass Filters Our standard high pass filters as all our standard RF filter products are derived from previous manufactured designs which have been proven and tested. A high pass filter is somewhat a bit more complex as far as achieving the specification over a very broad band as oppose to it's opposite counterpart the Low pass filter. It will depend largely on the additional parasitic components within and element, such an inductor which have a self resonant frequency due to it's parasitic capacitance, which... (read more)Browse RF Filters and Microwave Filters Datasheets for Anatech Electronics, Inc. -
Alluxa, Inc.
FLUORESCENCE FILTERS FOR MICROSCOPY AND IMAGING Fluorescence Filters for Microscopy and Imaging. Fluorescence microscopes and imaging systems utilize fluorescent biomarkers and fluorescence filter sets to create bright, high contrast images of biomolecules, organelles, cells, tissues, organs, and organ systems. Because image quality is highly dependent on the design and overall performance of the fluorescence filters integrated into these systems, optical filter performance is just as important to the final image as sample preparation... (read more)Browse Optical Filters Datasheets for Alluxa, Inc.
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Design and Analysis of Analog Filters
Transitional Filters Gaussian Filters Legendre Filters Ultraspherical Filters Papoulis Filters Halpern Filters Phase-Compensated Filters Chapter 8 Problems .
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Reconstruction of a discontinuous function from a few fourier coefficients using bayesian estimation
The Legendre Filter .
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Compact Legendre low-pass filters for microwave applications
In case of Legendre filters there is low unequal ripple level in the passband.
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Filter synthesis using products of Legendre polynomials
It can be seen that Legendre filters compared to Butterworth ones have a sharper cutoff with little more ripple (Fig. 2a) and quite similar phase response in the blocking area (Fig. 2b).
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Implementation of a discrete Legendre adaptive IIR filter using the DSP56001
This scaling and quantization impose a limit on the number of stages N that can be included in the discrete Legendre filter .
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Designing monotonic low‐pass filters—comparison of some methods and criteria
The Well‐Known Legendre Filters , And The More Recently Introduced Class H Filters, Both Belonging To This Class, Are Derived As Special Cases Of The Application Of Least‐Squares Approximation Technique By Optimizing The Asymptotic Loss.
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Sharp cutoff filters with monotonic passband response
It provides a compromise between maximally flat Butterworth filter and Legendre filter [4] with ripples in the pass-band.
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Using least‐mean‐square‐approximation technique in filter design
Also, a useful generalization of Legendre filter functions is proposed.
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Generalized analysis of optimum monotonic low-pass filters
Most recently, some transi- tional types of monotonic passbandfilter functions, such as generalized Legendre filters [6] and TBL (transitional Butterworth-Legendre) filters [7], enabling a tradeoff to be made between the passband loss and the stopband attenuation have also been described.
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A New Dynamical Model for the Black Hole Binary LMC X-1
The open circles show, for example, the results obtained by fitting the velocity data using the spectrum of HD 93843 as the template and employing Legendre filtering .
