báo cáo hóa học:" UWB system based on energy detection of derivatives of the Gaussian pulse" pdf

... are the equations of the 10th- and 30th-order derivatives of the Gaussian pulse. These two equations are the simplified versions of the original ones obtained from MAPLE. The common factors of the ... almost the same. Because the multipath components in these two system arrive at the same time and the only difference is the duration of the pulses in the...

Ngày tải lên: 20/06/2014, 04:20

... Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. UWB system based on energy detection of derivatives ... in the presence of synchronization errors Figure 7 depicts the GFSK frame structure in the presence of synchronization errors. The integration interval...

Ngày tải lên: 18/06/2014, 22:20

... 2011:206 http://jwcn.eurasipjournals.com/content/2011/1/206 Page 9 of 18 RESEARCH Open Access UWB system based on energy detection of derivatives of the Gaussian pulse Song Cui * and Fuqin Xiong Abstract A new method for energy detection ... re the equations o f the 10th- and 30th-or der derivativ es of the Gaussian pulse. These two equations are the si...

Ngày tải lên: 20/06/2014, 21:20

... (coupling off) in the absence of the control field (control off), which shows the standard resonance absorption profile. However, when the coupling turns on, the center of the curve shifts from the ... it. In fact, the position on the surface of the resonator where the binding takes place is one factor that strongly affects the resonance frequency shift. The...

Ngày tải lên: 20/06/2014, 22:20

... framewor k, in the second step of which we consider the compromise of user rate maximization and power consumption. T herefore, fairness is achieved at the cost of reduction on the sum rate of users. ... the capacityofarelayuserisconfinedbytheminimum SINR of the two kinds of time slots. To get the balance in the two slots, the introduction of the third item...

Ngày tải lên: 20/06/2014, 22:20

... database is one of the most impor- tant tasks in image -based identification systems. Feature Figure 5 Overview of the feature extraction component. Figure 6 Steps of feature vector extraction in the ... identification method based on retinal images. The proposed system composed of two main parts, feature extraction component and decision-making component. In feature ex...

Ngày tải lên: 20/06/2014, 22:20

... along the line, which is a linear combination of the primary variables. The PCA technique, based on the diagon alization of the covariance matrix of the vari- ables, finds t he parameters of ... The larger the value of C, the more stringent the constraint of correct classification of all examples. The number of support vectors is equal to the number...

Ngày tải lên: 21/06/2014, 00:20

... mixture on the current of the diode which was reverse biased with the voltage of 0.5 V. Table 1 Summary of the deposition conditions and electrical characteristics of the samples prepared on methanol-treated ... pre- pared. The first one was an aqueous solution of Pd (NH 3 ) 4 Cl 2 , the second was an aqueous solution of hydrazine. Equal volumes of these soluti...

Ngày tải lên: 21/06/2014, 03:20

... the tonal and nontonal components of the audio Step 4: Decimation of tonal and nontonal masking components Step 5: Calculation of t he individual masking thresholds Step 6: Determination of the ... exploited in the proposed method to obtain the spectral characteristics of a watermark based on the in- audible information of the HAS [10, 11, 12]. An algorithm for...

Ngày tải lên: 23/06/2014, 01:20

... Parliament and of the Council of 29 April 2004 on the right of citizens of the Union and their family members to move and reside freely within the territory of the Member States amending Regulation (EEC). ... “Liberty of movement is an indispensable condi- tion for the free develo pment of a person” [2]. Earlier, the Office of the High Commissioner for Human...

Ngày tải lên: 20/06/2014, 08:20