Time Division Duplex (TDD)-based bidirectional digital field pick-up unit (FPU) system is
now being studied. This new digital FPU system shares its frequency band with other …

According to short wave radio signal of a certain active airborne frequency measurement
instrument part device still adopts pure hardware building mode and acquisition data …

Cognitive Radio networks demand a fast and accurate wideband spectrum sensing in order
to operate successfully and achieve efficient spectrum utilization. The wavelet transform …

Spectrum analysis which is also known as spectral density estimation or frequency domain
analysis is a process of decomposing a signal into smaller parts. A process that calculates …

The spectrum sensing is a quite important part in cognitive radio. This paper discusses
energy sensing, the common spectrum sensing algorithm in cognitive radio, as well as some …

Spectrum sensing is a key technology of cognitive radio. The goal of spectrum sensing in
this context is to achieve a high detection probability in order to avoid causing interference to …

The conventional spectrum analyzer (or receiver) detect the spectrums of time signal not
accurately and approximately. In this paper an accurate spectrum detection method of …

In order to get more accurate data, it is very important to remove noise in embedded ECG
acquisition system based on Bluetooth wireless communication technology. FIR digital …

The Federal Communications Commission (FCC) opened free" white space" spectrum on
November 4, 2008. In this way, Google and other technology companies that wanted access …

Fast Fourier transform (FFT) searches code phase and carrier frequency of DSSS signal in
frequency domain at the same time. The use of FFT for fast acquisition has gained its …