Products/Services for Legendre Filter
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Active Filters - (51 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 - (23 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 - (25 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 - (19 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 - (347 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 - (154 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 - (26 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 - (145 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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Foctek Photonics, Inc.
optical filter Foctek mainly offers followingFilter products : Colored Glass Filter Applications; Interference Filter; Neutral Density Filter; Dielectric Coating Filter. Foctek mainly offers followingFilter products : Colored Glass Filter Applications. Interference Filter. Neutral Density Filter. Dielectric Coating Filter (read more)Browse Optical Filters Datasheets for Foctek Photonics, Inc. -
Hilliard Corporation (The)
Portable Filters HILCO Portable Filters offer reliable, convenient-to-use, off-line filtration that permit industrial fluid reuse and help keep equipment clean. Filters are ideal for reservoirs and batch filtration of fluids where one mobile filter can serve many work stations.\. Applications: The Hilco Portable Filters are used to condition synthetic lubricating hydraulic fluids. Click here for more information, including product literature. (read more)Browse Filtration Equipment Datasheets for Hilliard Corporation (The) -
Hangzhou Shalom Electro-optics Technology Co., Ltd.
Optical Filters Features: Various Types: Bandpass Filters, Neutral Density Filters, Dichroic Filters, Notched Filters, Colored Glass Absorptive Filters, IR Filters, Laser Line Filters. Stocked and Custom. Robustness under harsh conditions. Cost-effectiveness and versatile functions. Optical Filters transmit light within a selective range of wavelengths, while the redundant light is absorbed or reflected, according to which optical filters are divided into two major classifications: reflective or absorbing type... (read more)Browse Optical Filters Datasheets for Hangzhou Shalom Electro-optics Technology Co., Ltd. -
Hangzhou Shalom Electro-optics Technology Co., Ltd.
Bandpass Filters Features: Various filter kinds: Narrow Bandpass Filters, Narrowband Filters for Biochemistry Analyzers, Narrowband Filters for Enzyme Labelling Instrument, Narrowband Filters for Polarimeter, Fluorescence filters, Ultra-Violet (UV) Narrowband Filters and High Transmission Narrow Bandpass Filters. Both industrial-standard-dimensions for convenient installation and custom dimensions are available. Each consists of multiple layers of dielectric coatings on a substrate. High-precision polishing... (read more)Browse Optical Filters Datasheets for Hangzhou Shalom Electro-optics Technology Co., Ltd. -
Avantier Inc.
Bandpass Filters Specifications of bandpass filters. Commonly used specifications for bandpass filters include peak transmission, center wavelength, full-width half-maximum, cut-on and cut-off wavelengths, pass band ripple, edge steepness and blocking. Peak transmission refers to the maximum transmission of the filter, and is usually given in percent. For instance, if a bandpass filter has 92% peak transmission 92% of the most freely transmitted light is passed through the filter. Center wavelength (CWL) refers... (read more) -
Shanghai Optics
Optical Filters www.shanghai-optics.com. Click here to learn more about optical filters. Optical filters selectively allow certain wavelengths of light to pass freely while blocking other wavelengths. Shanghai Optics manufactures a wide range of optical filters for engineering, scientific, and photographic applications. Our hard coated optical filters are dichroic filters. They are composed of a single substrate with a dense hard coating. These hard sputtered filters are expensive to produce, but they have... (read more)Browse Optical Filters Datasheets for Shanghai Optics -
Shanghai Optics
Fluorescence Filters Click here to learn more about fluorescence filters. www.shanghai-optics.com. Choosing a Fluorescence Filter. At Shanghai Optics we produce a wide range of fluorescence sets that are designed with the excitation and emission filters suitable for each commonly used fluorophore. For specialized applications, such as those using multiple fluorophores, alternate dichroic filters or laser sources, we are able to produce custom filter sets upon request. Please contact us to discuss the specific... (read more)Browse Optical Filters Datasheets for Shanghai Optics -
Foctek Photonics, Inc.
IPL filter PL- filter. IPL filter is the key optical element for IPL (intense Pulsed Light) machine, which filters the UV wave and reserve the useful wave from 400nm to 1200nm for cosmetic laser, such as photrevujenation, hair removal, vascular and acne treatment. The available wavelength are 550, 560, 570, 590, 615, 645, 695, 755,780 nm. Specifications: Material: ... ... ... ... ... ... ... ... ... ... ...BK7 Grade A optical glass, Fused silica, Sapphire crystal. Dimension Tolerance... (read more)Browse Optical Filters Datasheets for Foctek Photonics, Inc. -
Alluxa, Inc.
Hard-coated Filters Replace Laminated Filters Alluxa offers a series of hard-coated optical filters that deliver increased performance and durability over traditional soft-coated filters, at comparable prices. These soft-coating replacement filters are available with center wavelengths across the visible spectrum with bandwidths typically between 10 nm and 50 nm. All of the hard-coated filters in this series offer both greater than 90% transmission and greater than OD4 blocking at prices that are comparable to laminated filters. Alluxa... (read more)Browse Optical Filters Datasheets for Alluxa, Inc. -
Suzhou Jiujon Optics Co., Ltd
Color Glass Filter/Un-Coated Filter Key Features: Selectively transmits or absorbs specific wavelengths of light. Precision-manufactured from high-quality color glass materials. Customizable dimensions and spectral characteristics available. Compatible with a wide range of optical systems and instruments. Suitable for both uncoated and coated configurations. Enhanced spectral control for diverse applications. Applications: The "Color Glass Filter/Un-Coated Filter" finds utility in numerous optical applications, including... (read more)Browse Optical Filters Datasheets for Suzhou Jiujon Optics Co., Ltd
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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 .
