calculates Linear Feedback Shift Register(LFSR) mask and seed values for a specific phase shift.
標(biāo)簽： calculates Feedback Register specific
上傳時(shí)間： 2017-09-06
上傳用戶：fnhhs
Combined Processing of GPS, GLONASS, and SBAS Code phase and Carrier phase Measurements Lambert Wanninger, Stephan Wallstab-Freitag Geodetic Institute, Dresden University of Technology, Germany
標(biāo)簽： phase Measurements Processing and
上傳時(shí)間： 2014-01-15
上傳用戶：asasasas
本程序用于完成BPSK、QPSK、8PSK的調(diào)制仿真。并可任意擴(kuò)展到MPSK和MQAM。程序分成三個(gè)部分：phase.m對(duì)基帶碼元序列進(jìn)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(hào)的基帶星座圖映射、脈沖成型和調(diào)制； command.m給出一個(gè)簡(jiǎn)單的頻譜顯示測(cè)試。
標(biāo)簽： phase BPSK 8PSK QPSK
上傳時(shí)間： 2014-01-14
上傳用戶：yangbo69
Very good code for phase locked Loop in matlab
標(biāo)簽： locked matlab phase Very
上傳時(shí)間： 2014-01-16
上傳用戶：zhuimenghuadie
another phase locked example for matlab
標(biāo)簽： another example locked matlab
上傳時(shí)間： 2017-09-15
上傳用戶：franktu
Two 2D phase unwrapping approaches are included: 1. phase quality guided path following method. 2. Goldstein's branch cut method. The algorithms are described in: D. C. Ghiglia and M. D. Pritt, Two-Dimensional phase Unwrapping: Theory, Algorithms and Software. New York: Wiley-Interscience, 1998.
標(biāo)簽： Unwrapping phase 2D
上傳時(shí)間： 2016-04-30
上傳用戶：seanjsj
This work titled A Digital phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel is intended to serve as a document covering funda- mental concepts and application details related to the design of digital phase locked loop (DPLL) and its importance in wireless communication. It documents some of the work done during the last few years covering rudimentary design issues, complex implementations, and fixing configuration for a range of wireless propa- gation conditions.
標(biāo)簽： Digital Locked phase Loop
上傳時(shí)間： 2020-05-27
上傳用戶：shancjb
This book is intended for the graduate or advanced undergraduate engineer. The primary motivation for developing the text was to present a complete tutorial of phase-locked loops with a consistent notation. I believe this is critical for the practicing engineer who uses the text as a self-study guide.
標(biāo)簽： Communications phase-Locked Wireless Loops for
上傳時(shí)間： 2020-05-31
上傳用戶：shancjb
This reference design describes the design of a 3-phase AC induction vector control drive with position encoder coupled to the motor shaft. It is based on Motorola’s DSP56F805 dedicated motor control device. AC induction motors, which contain a cage, are very popular in variable speed drives. They are simple, rugged, inexpensive and available at all power ratings. Progress in the field of power electronics and microelectronics enables the application of induction motors for high-performance drives, where traditionally only DC motors were applied. Thanks to sophisticated control methods, AC induction drives offer the same control capabilities as high performance four-quadrant DC drives.
標(biāo)簽： Reference Designer Manual phase DRM 023 AC
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
偏移正交相移鍵控(OQPSK：Offset Quadrature phase Shift Keying)調(diào)制技術(shù)是一種恒包絡(luò)調(diào)制技術(shù)，具有頻譜利用率高、頻譜特性好等特點(diǎn)，廣泛應(yīng)用于衛(wèi)星通信和移動(dòng)通信領(lǐng)域。 論文以某型偵收設(shè)備中OQPSK解調(diào)器的全數(shù)字化為研究背景，設(shè)計(jì)并實(shí)現(xiàn)了基于FPGA的全數(shù)字OQPSK調(diào)制解調(diào)器，其中調(diào)制器主要用于仿真未知信號(hào)，作為測(cè)試信號(hào)源。論文研究了全數(shù)字OQPSK調(diào)制解調(diào)的基本算法，包括成形濾波器、NCO模型、載波恢復(fù)、定時(shí)恢復(fù)等；完成了整個(gè)調(diào)制解調(diào)算法的MATLAB仿真。在此基礎(chǔ)上，采用VHDL硬件描述語(yǔ)言在Xilinx公司ISE7.1開(kāi)發(fā)環(huán)境下設(shè)計(jì)并實(shí)現(xiàn)了各個(gè)算法模塊，并在硬件平臺(tái)上加以實(shí)現(xiàn)。通過(guò)實(shí)際現(xiàn)場(chǎng)測(cè)試，實(shí)現(xiàn)了對(duì)所偵收信號(hào)的正確解調(diào)。論文還實(shí)現(xiàn)了解調(diào)器的百兆以太網(wǎng)接口，使得系統(tǒng)可以方便地將解調(diào)數(shù)據(jù)發(fā)送給計(jì)算機(jī)進(jìn)行后續(xù)處理。
上傳時(shí)間： 2013-06-30
上傳用戶：Miyuki
蟲(chóng)蟲(chóng)下載站版權(quán)所有 京ICP備2021023401號(hào)-1
