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Phase

GSM标准由ETSI SMG(欧洲通信标准委员会特别移动组)制定,按照实现的功能和业务分为Phase1,Phase2,Phase2+ 三个阶段
  • This application note considers the design of frequency- selective filters, which modify the freque

    This application note considers the design of frequency- selective filters, which modify the frequency content and Phase of input signals according to some specification. Two classes of frequency-selective digital filters are considered: infinite impulse response (IIR) and finite impulse response (FIR) filters. The design process consists of determining the coefficients of the IIR or FIR filters, which results in the desired magnitude and Phase response being closely approximated.

    标签: application considers frequency the

    上传时间: 2014-01-04

    上传用户:ardager

  • This sample program generates two sine waves called X and Y. It will then calculate the normalized

    This sample program generates two sine waves called X and Y. It will then calculate the normalized magnitude and Phase of the two waveforms using the following formulas: Mag = sqrt(X^2 + Y^2)/sqrt(GainX^2 + GainY^2) Phase = (long) (atan2PU(X,Y) * 360) The program will prompt the user to change the gain and frequency of the X and Y waveforms.

    标签: Y. normalized generates calculate

    上传时间: 2014-01-06

    上传用户:123456wh

  • Abstract-In this paper, simple autonomous chaotic circuits coupled by resistors are investigated. B

    Abstract-In this paper, simple autonomous chaotic circuits coupled by resistors are investigated. By carrying out computer calculations and circuit experiments, irregular self-switching phenomenon of three spatial patterns characterized by the Phase states of quasi-synchronization of chaos can be observed from only four simple chaotic circuits. This is the same phenomenon as chaotic wandering of spatial patterns observed very often from systems with a large number of degrees of freedom. Namely, one of spatial-temporal chaos observed from systems of large size can be also generated in the proposed system consisting of only four chaotic circuits. A six subcircuits case and a coupled chaotic circuits networks are also studied, and such systems are confirmed to produce more complicated spatio-temporal phenomena.

    标签: investigated Abstract-In autonomous resistors

    上传时间: 2014-06-09

    上传用户:h886166

  • Show work of ODE45 function. As the example use lorenz equation. Example show ensemble Puankare and

    Show work of ODE45 function. As the example use lorenz equation. Example show ensemble Puankare and Phase picture

    标签: Puankare function equation ensemble

    上传时间: 2014-10-13

    上传用户:qiao8960

  • ETSI MAP

    Digital cellular telecommunications system (Phase 2+); Mobile Application Part (MAP) Specification (3GPP TS 09.02 version 7.9.0 Release 1998)

    标签: ETSI MAP

    上传时间: 2015-12-31

    上传用户:liu_yang

  • Phase Locked Loop Design Fundamentals

    描述 了PLL 的基础知识哦,非常的 实用

    标签: Phase Locked Loop Design Fundamentals

    上传时间: 2017-03-13

    上传用户:rfzhangyicheng

  • 基于频率插值的4.0kbps 语音编码器的性能和设计(英文)

    The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW Phases are derived at the decoder using a Phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.

    标签: frequency-domain interpolation performance Design kbit_s speech coder based and of

    上传时间: 2018-04-08

    上传用户:kilohorse

  • 三相整流器LCL滤波器设计

    Design and Control of an LCL-filter-based three-Phase active rectifier  早期的文章

    标签: LCL-filter-based three-Phase rectifier control Design active and an of

    上传时间: 2018-05-19

    上传用户:wangweiyaorui

  • GSM 03.40

    Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS) Point-to-Point (PP) (3GPP TS 03.40 version 7.5.0 Release 1998)

    标签: GSM

    上传时间: 2019-06-14

    上传用户:twogozi

  • GSM 03.48

    Digital cellular telecommunications system (Phase 2+); Security mechanisms for SIM application toolkit; Stage 2 (3GPP TS 03.48 version 8.8.0 Release 1999)

    标签: GSM

    上传时间: 2019-06-14

    上传用户:twogozi