This code takes data received from a bearing and converts it from the time domain to the frequency domain in order to determine bearing defect size.
標簽： from frequency the converts
上傳時間： 2017-03-11
上傳用戶：sunjet
Measuring System, Time- and Frequency Functions
標簽： Measuring Frequency Functions System
上傳時間： 2017-03-20
上傳用戶：franktu
ML estimation of time and frequency offset in OFDM systems
標簽： estimation frequency systems offset
上傳時間： 2017-03-29
上傳用戶：yuzsu
ML estimation of time and frequency offset in OFDM systems
標簽： estimation frequency systems offset
上傳時間： 2013-12-01
上傳用戶：songyue1991
Abstract：Noise frequency modulation(FM)jamming。which belongs to blanket jamming。is already become the main form ofnoise jamming at present。because the wideband was gained by it．Tne spectnlnl ofnoise FM jamming is analyzed by time domain autocorrelation method in this paper．It’S jamm g peculiarity and幾out— putting signal’S jamming peculiarity ale explained．At last，these time series models ofnoise FM jalllIIling sig— nal and幾outputting signal ale built．
標簽： jamming modulation frequency Abstract
上傳時間： 2015-10-17
上傳用戶：lijinchuan
This paper investigates the design of joint frequency offset and carrier phase estimation of a multi-frequency time division multiple access (MF-TDMA) demodulator that is applied to a digital video broadcasting—return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based on the interpolation technique for two correlation values in the frequency and phase domains. This simple interpolation technique can significantly improve frequency and phase resolution capabilities of the proposed technique without increasing the number of the correlation values. In addition, the overall block diagram of a digital communications receiver for DVB-RCS is presented, which was designed using the proposed estimation algorithms. Index Terms—Carrier phase estimation, DVB-RCS, frequency offset estimation, interpolation, joint estimation, MF-TDMA.
標簽： investigates estimation frequency carrier
上傳時間： 2015-12-30
上傳用戶：ls530720646
Circular Convolution of two equal-length vectors. Highlights that circular convolution in the time domain is the effectively the same as element-by-element multiplication in the frequency domain.
標簽： equal-length Convolution convolution Highlights
上傳時間： 2014-01-22
上傳用戶：aig85
Wireless communications has become a field of enormous scientific and economic interest. Recent success stories include 2G and 3G cellular voice and data services (e.g., GSM and UMTS), wireless local area networks (WiFi/IEEE 802.11x), wireless broadband access (WiMAX/IEEE 802.16x), and digital broadcast systems (DVB, DAB, DRM). On the physical layer side, traditional designs typically assume that the radio channel remains constant for the duration of a data block. However, researchers and system designers are increasingly shifting their attention to channels that may vary within a block. In addition to time dispersion caused by multipath propagation, these rapidly time-varying channels feature frequency dispersion resulting from the Doppler effect. They are, thus, often referred to as being “doubly dispersive.”
標簽： Time-Varying Channels
上傳時間： 2020-06-01
上傳用戶：shancjb
從時域分析比較了ofdm和stbc與ofdm結合的性能差別-from time-domain analysis and comparison of OFDM stbc OFDM combined wi
上傳時間： 2013-06-05
上傳用戶：caozhizhi
·Multicarrier Communications: Lie-Liang Yang Wiley | ISBN: 0470722002 | 2009-03-03 ,696 pages Benefiting from both time-domain and frequency-domain signal processing techniques, multi
標簽： nbsp Communications Multicarrier Wiley
上傳時間： 2013-04-24
上傳用戶：prczsf
