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  • SC-FDMA+for+Mobile+Communications

    The single-carrier frequency division multiple access (SC-FDMA) system is a well-known system that has recently become a preferred choice for mobile uplink Channels. This is attributed to its advantages such as the low peak-to-average power ratio (PAPR) and the use of frequency domain equalizers. Low PAPR allows the system to relax the specifications of linearity in the power amplifier of the mobile terminal, which reduces cost and power consumption. 

    標簽: Communications SC-FDMA Mobile for

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • Space-Time+Processing+for+Wireless+Communications

    In this thesis several asp ects of space-time pro cessing and equalization for wire- less communications are treated. We discuss several di?erent metho ds of improv- ing estimates of space-time Channels, such as temp oral parametrization, spatial parametrization, reduced rank channel estimation, b o otstrap channel estimation, and joint estimation of an FIR channel and an AR noise mo del. In wireless commu- nication the signal is often sub ject to intersymb ol interference as well as interfer- ence from other users. 

    標簽: Communications Space-Time Processing Wireless for

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • Wireless Optical Communication Systems

    The use of optical free-space emissions to provide indoor wireless commu- nications has been studied extensively since the pioneering work of Gfeller and Bapst in 1979 [1]. These studies have been invariably interdisciplinary in- volving such far flung areas such as optics design? indoor propagation studies? electronics design? communications systems design among others. The focus of this text is on the design of communications systems for indoor wireless optical Channels. Signalling techniques developed for wired fibre optic net- works are seldom efficient since they do not consider the bandwidth restricted nature of the wireless optical channel. 

    標簽: Communication Wireless Optical Systems

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • Wireless+Communications+over+MIMO+Channels

    Mobile radio communications are evolving from pure telephony systems to multimedia platforms offering a variety of services ranging from simple file transfers and audio and video streaming, to interactive applications and positioning tasks. Naturally, these services have different constraints concerning data rate, delay, and reliability (quality-of-service (QoS)). Hence, future mobile radio systems have to provide a large flexibility and scal- ability to match these heterogeneous requirements.

    標簽: Communications Wireless Channels MIMO over

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • ST7789V IC規格書

     Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM) Display Resolution: 240*RGB (H) *320(V) Frame Memory Size: 240 x 320 x 18-bit = 1,382,400 bits LCD Driver Output Circuits- Source Outputs: 240 RGB Channels- Gate Outputs: 320 Channels- Common Electrode Output Display Colors (Color Mode)- Full Color: 262K, RGB=(666) max., Idle Mode Off- Color Reduce: 8-color, RGB=(111), Idle Mode On Programmable Pixel Color Format (Color Depth) for Various Display Data input Format- 12-bit/pixel: RGB=(444)- 16-bit/pixel: RGB=(565)- 18-bit/pixel: RGB=(666) MCU Interface- Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)- 6/16/18 RGB Interface(VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])- Serial Peripheral Interface(SPI Interface)- VSYNC Interface

    標簽: st7789v LCD

    上傳時間: 2022-03-04

    上傳用戶:

  • MT2625 datasheet v1.2

    MT2625 DatasheetVersion: 1.2Release date: 31 January 2018NB-IoT transceiver? Compliant with 3GPP R13/R14 NB-IoT standard? Supports DL 200kHz bandwidth/UL single tone and multi-tone? Supported RF bands: B1/B2/B3/B5/B8/B11/B12/B13/B17/B18/B19/B20/B21/B25/B26/B28/B31/B66/B70/B71? Supports PSM and eDRX modeMicrocontroller subsystem? ARM? Cortex?-M4 with FPU and MPU? 14 DMA Channels? One RTC timer, one 64-bit and five 32-bit general purpose timers? Development support: SWD, JTAG? Crypto engineo AES 128, 192, 256 bitso DES, 3DESo MD5, SHA-1, 224, 256, 384, 512? True random number generator? JTAG password protection

    標簽: MT2625

    上傳時間: 2022-07-04

    上傳用戶:

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