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Multiple subcarrier frequency refers to a method of dividing a single carrier frequency into multiple smaller subcarriers. This technique is commonly used in communication systems like Orthogonal Frequency Division Multiplexing (OFDM) to efficiently transmit data by dividing the available frequency bandwidth into multiple subchannels. Each subcarrier carries its own data stream, allowing for parallel transmission and improving spectral efficiency.
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Has a higher frequency than the fundamental frequency?
The frequency of a harmonic in a sound wave is always an integer multiple of the fundamental frequency. It cannot be higher than the fundamental frequency.
The frequency of sound vibrations is measured in?
Same as any other frequency: in Hertz, or some multiple, like kilohertz.
What is third harmonic?
The third harmonic is a frequency that is three times the fundamental frequency of a wave or signal. It is a multiple of the fundamental frequency and is characterized by having three times the wavelength and three times the frequency of the original wave.
How can a system have more than one resonant frequency?
A system can have more than one resonant frequency if it has multiple modes of vibration that can be excited. Each mode will have its own natural frequency at which it resonates. This can happen in systems with complex geometries or multiple components interacting with each other.
What is frequency devision?
Frequency division is a method of separating a communication channel into multiple non-overlapping frequency bands. Each band is then used to carry a different signal or data stream. This technique is commonly used in radio communication systems to enable multiple users to share the same channel without interfering with each other.
What is the color subcarrier frequency?
A modulated monochrome signal whose side-bands convey color information.
In FM transmitter the rate of frequency swing is determined by the?
The frequency with which the carrier frequency is deviated is exactly the modulating frequency, i.e. the frequency of the sound that makes up the music or voice announcement, stereo pilot, SCA subcarrier, etc.
Can an analog tv receive a digital cable signal?
using two subcarriers and a main carrier signalaudio subcarrier is frequency modulated with audiocolor subcarrier is phase modulated with chromamain carrier is amplitude modulated with sum of video and modulated audio subcarrier & color subcarrier; then lower sideband is suppressed by a filter.closed captions are serial ASCII encoded characters embedded in vertical blanking of video signal
What is a subcarrier oscillator?
what is sub carrier oscillator?
What is the vibration whose frequency is a multiple of the fundamental frequency?
Overtone
How do you calculate the system parameters of OFDM systems?
To calculate the system parameters of Orthogonal Frequency Division Multiplexing (OFDM) systems, you typically start by determining the bandwidth and subcarrier spacing, which are influenced by the number of subcarriers (N) and the total bandwidth (B). The subcarrier spacing can be calculated as Δf = B/N. Additionally, the symbol duration (T) is the inverse of the subcarrier spacing (T = 1/Δf), and the total duration of the OFDM symbol, including the cyclic prefix, is crucial for mitigating inter-symbol interference. Finally, the signal-to-noise ratio (SNR) can be assessed based on the modulation scheme and the channel conditions to optimize performance.
Has a higher frequency than the fundamental frequency?
The frequency of a harmonic in a sound wave is always an integer multiple of the fundamental frequency. It cannot be higher than the fundamental frequency.
What is the whole number multiple of the fundamental frequency of a string?
A harmonic.
Why fft and ifft used in ofdm?
we use IFFT in OFDM to convert the signal from frequency domain to time domain the idea in OFDM generation, the transmitter accepts a stream of data and converts them to symbols using modulation technique, for example QPSK. Then the S/P converter takes the output 4 symbols and mixes each one with one of the subcarrier, we now have 4 sine waves then add the 4 sine. Now we notice that S/P conversion stage the data represent as a function of frequency. After addition stage stage the data represent as a function of time. This conversion is actually a well-known computational technique called the inverse Fast Fourier transform.
The frequency of sound vibrations is measured in?
Same as any other frequency: in Hertz, or some multiple, like kilohertz.
What is third harmonic?
The third harmonic is a frequency that is three times the fundamental frequency of a wave or signal. It is a multiple of the fundamental frequency and is characterized by having three times the wavelength and three times the frequency of the original wave.
How can a system have more than one resonant frequency?
A system can have more than one resonant frequency if it has multiple modes of vibration that can be excited. Each mode will have its own natural frequency at which it resonates. This can happen in systems with complex geometries or multiple components interacting with each other.
