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Description: 超宽带高斯脉冲的源代码，包括波形分析和误码率计算-Ultra-wideband Gaussian pulse source code, including waveform analysis and bit error rate calculation
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Size: 7168 |
Author: 朱凡 |
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Description: Increasing interest in ultra-wideband (UWB) communications has engendered the need
for a test bed for UWB systems. An FPGA-based software-defined radio provides both postfabrication
definition of the radio and ample parallel processing power. This thesis presents
the FPGA design for a software-defined radio targeted to impulse ultra-wideband signals.
The system is capable of an effective sampling frequency of up to 8 G-samples/s using timeinterleaved
sampling with eight 1-GHz ADCs. The system is also capable of transmitting
UWB pulses using a transmitter board controlled by the FPGA. In this thesis, the FPGA
design used to capture and export data from the eight ADCs is presented, along with two
systems which make use of the transceiver: a pilot-based matched filter communications
system, and a remote vital signs monitor.
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Size: 1396736 |
Author: chaiwat |
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Description: About UWB A co-basis is a special orthonormal basis, of the Hilbert function space, whose base functions are shape-invariant to Fourier transform except for phase shifts known a priori. A notable advantage of the co-basis orthonormal-expansion method lies in that it essentially conceals the difference between time- and frequency-domains expansions, such that expanding the UWB spectra (frequency domain) is almost equivalent to expanding the pulse shapes (time domain), making the designing task significantly simple. This paper highlights this advantages through tutorial examples on the design of UWB pulses with DAA functionality that meets Korea spectrum regulations.-About UWB
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Size: 516096 |
Author: 王磊 |
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Description: 此函数用于产生脉冲超宽带系统的训练序列的波形。输出参数有三个：bits--发送的数据,stx--发送的信号,ref--参考信号
发送端调制方式为TH-PAM-The emerging ultra-wideband (UWB) system offers a great potential
for high data rate wireless multimedia applications of the home
entertainment and industry, as well as for low data rate sensor
networks involving low power devices~\cite{paragraph1}. One of the
most acute challenges in realizing these potentials of the UWB
systems is the timing acquisition. Timing errors as small as
fractions of a nanosecond could seriously degrade the system
performance~\cite{paragraph21}. The difficulty in UWB
synchronization arises from UWB signals being the ultrashort
low-duty-cycle pulses operating at very low power density.
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Size: 1024 |
Author: 徐微 |
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Description: In this paper, we describe a novel approach for reducing the power consumption and complexity of a multiband orthogonal frequency-division multiplexing (MB-OFDM) ultrawideband (UWB) system by applying ideas from pulsed UWB ystems. The approach is quite general and applicable to many other systems. Unlike the MB-OFDM system, the enhancement that we propose
uses pulses with duty cycles of less than 1 as the amplitude shaping pulse of orthogonal frequency-division multiplexing (OFDM)
modulation.-In this paper, we describe a novel approach for reducing the power consumption and complexity of a multiband orthogonal frequency-division multiplexing (MB-OFDM) ultrawideband (UWB) system by applying ideas from pulsed UWB ystems. The approach is quite general and applicable to many other systems. Unlike the MB-OFDM system, the enhancement that we propose
uses pulses with duty cycles of less than 1 as the amplitude shaping pulse of orthogonal frequency-division multiplexing (OFDM)
modulation.
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Size: 544768 |
Author: Mahesh |
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Description: These matlab codes are for UWB and Higher order Gaussian pulses.-These matlab codes are for UWB and Higher order Gaussian pulses.
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Size: 14336 |
Author: sudhan |
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Description: UWB(Ultra Wideband)是一种无载波通信技术，利用纳秒至微微秒级的非正弦波窄脉冲传输数据。-UWB (Ultra Wideband) is a kind of no carrier communication technology, using ns to level the sine wave narrow picosecond pulses transmitted data
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Size: 2048 |
Author: lihaotian |
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Description: Generation of a PPM-UWB signal in the case of a
sinusoidal modulating signal and rectangular pulses-Generation of a PPM-UWB signal in the case of a
sinusoidal modulating signal and rectangular pulses
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Size: 1024 |
Author: Elahmar |
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Description: 高斯、Hermit脉冲产生(UWB系统中的各种参数Gaussian及Hermit脉冲产生程序)-Gaussian，Hermit UWB Pulses
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Size: 73728 |
Author: |
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