本程序用于完成BPSK、QPSK、8PSK的調制仿真。并可任意擴展到MPSK和MQAM。程序分成三個部分:phase.m對基帶碼元序列進行脈沖成型,可選矩形脈沖,升余弦脈沖和平方根升余弦脈沖; model.m 為主程序,完成各種信號的基帶星座圖映射、脈沖成型和調制; command.m給出一個簡單的頻譜顯示測試。
上傳時間: 2014-01-14
上傳用戶:yangbo69
Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy machinery and engines because the noise is selectively eliminated. Desired sounds, such as speech and warning signals, are left to be heard clearly. The adaptive control algorithm is implemented on a Texas Instruments (TI™ ) 1 TMS320C30GEL digital signal processor (DSP), which drives a Sony CD550 headphone/microphone system. Our experiments indicate that adaptive noise control results in a dramatic improvement in performance over fixed noise control. This improvement is due to the availability of high-performance programmable DSPs and the self-optimizing and tracking capabilities of the adaptive controller in response to the surrounding noise.
標簽: Commercially controllers headphones available
上傳時間: 2013-12-04
上傳用戶:dyctj
Low Power ISM-Transceiver of Chipcon/Texas-Instruments. Contents of the library are CC1000, CC1000-UCSP, CC1020, CC1050, CC1100, CC1110, CC1150, CC2430, CC2500, CC2510, CC2511 and CC2550. Eagle Cadsoft Library
標簽: Texas-Instruments ISM-Transceiver Contents Chipcon
上傳時間: 2017-09-11
上傳用戶:llandlu
Very good code for Phase locked Loop in matlab
上傳時間: 2014-01-16
上傳用戶:zhuimenghuadie
AVR single-chip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-chip ISP download beginners line, the editing, debugging of software programs through a direct line into the AVR microcontroller, which can develop AVR Series Single-chip package of a variety of devices. AVR single-chip microcomputer in the industry known as "front-line struggle to seize state power."
標簽: single-chip developed threshold the
上傳時間: 2017-09-12
上傳用戶:shinesyh
AVR single-chip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-chip ISP download beginners line, the editing, debugging of software programs through a direct line into the AVR microcontroller, which can develop AVR Series Single-chip package of a variety of devices. AVR single-chip microcomputer in the industry known as "front-line struggle to seize state power."
標簽: single-chip developed threshold the
上傳時間: 2013-12-09
上傳用戶:invtnewer
calculate the noise in th wireless
標簽: calculate wireless noise the
上傳時間: 2017-09-13
上傳用戶:watch100
Visual Basic Low Level Disk Acces
上傳時間: 2013-12-23
上傳用戶:王楚楚
another phase locked example for matlab
標簽: another example locked matlab
上傳時間: 2017-09-15
上傳用戶:franktu
The STi7105 uses state of the art process technology to provide an ultra low-cost, fully featured HD AVC decoder IC. It is a highly integrated system-on-chip suitable for STB markets across all networks (cable/satellite/DTT/x- DSL/IP) worldwide
標簽: technology low-cost featured process
上傳時間: 2013-12-22
上傳用戶:時代電子小智