AGC增益控制电压输入,Mode为高电平时,增益随AGC控制电压正向增大
上传时间: 2017-12-22
上传用户:cara
基于SDF结构的FFT的设计,通过对SDF的合理用用,提高运行的速度,更适合实际的使用。
标签: Design Radix Architecture Approaches Hardware gurable Recon Using Mode FFT
上传时间: 2018-03-29
上传用户:lpyaking
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
Digital Control of High-Frequency Switched-Mode Power Converters-Wiley-IEEE Press (2015)
上传时间: 2018-09-15
上传用户:赛德克巴莱
DESCRIPTION The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power Modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power Modes to active Mode in less than 1 μs. The MSP430G2x13 and MSP430G2x53 series are ultra-low-power mixed signal microcontrollers with built-in 16- bit timers, up to 24 I/O capacitive-touch enabled pins, a versatile analog comparator, and built-in communication capability using the universal serial communication interface. In addition the MSP430G2x53 family members have a 10-bit analog-to-digital (A/D) converter. For configuration details see Table 1. Typical applications include low-cost sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system.
上传时间: 2018-12-25
上传用户:ygyh
实验项目一、单任务实验 让LED以1Hz频率进行闪烁。 实验项目二、定时查询实验 按下按键后点亮LED0、松开按键后熄灭LED0。 实验项目三、多任务实验 让LED0、LED1和LED3分别以1Hz、2Hz和3Hz的频率进行闪烁 实验项目四、临界区实验 按一次按键点亮LED0、再按一次按键熄灭LED0
标签: UCosIII
上传时间: 2019-05-02
上传用户:Shawn11
895nm Single-Mode VCSEL
上传时间: 2019-05-26
上传用户:jilei
Output Feedback Active Suspension Control With Higher Order Terminal Sliding Mode
标签: 滑模
上传时间: 2019-07-24
上传用户:sjjy0220
Second-Order Consensus in Multiagent Systems via Distributed Sliding Mode Control
上传时间: 2019-07-24
上传用户:sjjy0220
Optimal Guaranteed Cost Sliding-Mode Control of Interval Type-2 Fuzzy Time-Delay Systems
上传时间: 2019-07-24
上传用户:sjjy0220