Carrier-phase synchronization can be approached in a general manner by estimating the multiplicative distortion (MD) to which a baseband received signal in an RF or coherent optical transmission system is subjected. This paper presents a unified modeling and estimation of the MD in finite-alphabet digital communication systems. A simple form of MD is the camer phase exp GO) which has to be estimated and compensated for in a coherent receiver. A more general case with fading must, however, allow for amplitude as well as phase variations of the MD. We assume a state-variable model for the MD and generally obtain a nonlinear estimation problem with additional randomly-varying system parameters such as received signal power, frequency offset, and Doppler spread. An extended Kalman filter is then applied as a near-optimal solution to the adaptive MD and channel parameter estimation problem. Examples are given to show the use and some advantages of this scheme.
標簽： synchronization Carrier-phase multiplicativ approached
上傳時間： 2013-11-28
上傳用戶：windwolf2000
蠕蟲mydoom.a版本的完整源代碼，mydoom為internet上傳播很廣的蠕蟲，以傳播能力強而聞名于世，蠕蟲為c語言編寫，很有借鑒意義。-worm version of the complete source code, mydoom internet for a wide spread of the worm to spread the renowned
上傳時間： 2013-12-12
上傳用戶：zhoujunzhen
ocx 代碼，C++編寫`DEFLATE Compressed Data Format Specification available in ftp://ds.internic.net/rfc/rfc1951.txt
上傳時間： 2016-01-15
上傳用戶：myworkpost
針對多DSP 共享總線的通用信號處理板卡, 介紹了基于PCI9054 和CPCI 總線的接口設計, 分析了通用WDM總線驅動程序的開發。采用Verilog HDL 用CPLD 設計控制時序實現了DSP 和 CPCI 總線橋接器PCI9054 之間的普通傳輸和高速DMA 傳輸。驅動程序采用DriverWorks 和Windows 驅動開發包DDK 進行開發, 具有很好的通用性和可移植性。
上傳時間： 2013-12-24
上傳用戶：tedo811
Data_Structures_and_Algorithms - These notes accompany Data Structures and Algorithms II. The course, to a large extent, follows on from Data Structures and Algorithms I. However, while DS&A I focused on fundamental datastructures, DS&A II will focus on practical algorithms, applicable to a wide range of tasks. The approach will be somewhat less formal, with a little more focus on applications.
標簽： Data_Structures_and_Algorithms Algorithms Structures accompany
上傳時間： 2016-05-08
上傳用戶：阿四AIR
GBA躲壁球游戲，可以運行在VisualHAM 開發軟件下，也可以通過mmc卡直接運行在Nintendo DS
標簽： GBA
上傳時間： 2016-05-09
上傳用戶：變形金剛
直接序列擴頻Matlab程序 直接序列擴頻通信可以有效地抵抗來自信道中的窄帶干擾。在一個直擴通信系統中,擴頻是通過偽噪聲序列(PN)對發送的信息數據進行調制來實現的。在接收端,原偽噪聲序列和所收信號的相關運算可將窄帶干擾擴展到DS信號的整個頻帶,使干擾等效為幅度較低頻譜較平坦的噪聲；同時，將DS信號解擴,恢復原始信息數據。
上傳時間： 2013-12-20
上傳用戶：franktu
自主開發的文件系統，自由協議 調用 mov ax,600 mov [7e20h],ax mov al, A mov [7f00h],al mov al,0 文件名以數字0結束 mov [7f01h,al 本例中文件數據位于內存 0000:2000h mov ax,cs mov ds,ax mov ax,7600h jmp ax
標簽： 文件系統
上傳時間： 2013-12-17
上傳用戶：qiao8960
功能:時鐘DS1302的讀寫 hd7279顯示顯示分 小時 說明： (1)每次上電時，必須把秒寄存器高位設置為0，時鐘才能走時 (2)如果每次需要寫入數據和時鐘日歷信息，須將"寫保護"寄存器設置成為0 (3)P0低4位接段碼，高4位接位選，從DS1302中讀出來的是BCD碼 (4)TS=1010,DS=01,RS=01(在Vcc1與Vcc2之間接2K電阻) (5)初始時間設置為05年 6月 10日 星期1 8:
上傳時間： 2016-06-16
上傳用戶：三人用菜
Detecting Network Intrusions via Sampling_A Game Theoretic Approach Internet Quarantine_Requirements for Containing Self-Propagating Code Modeling Malware Spreading Dynamics Modeling the Spread of Active Worms
標簽： Quarantine_Requireme Intrusions Sampling_A Detecting
上傳時間： 2013-11-30
上傳用戶：xc216
