noise figure वाक्य
उदाहरण वाक्य
मोबाइल
- The ideal LNB, effectively a perfect amplifier, would have a noise figure of 0 dB and would not add any noise to the signal.
- This had the effect of increasing the plate-grid distance for a given tube size, increasing the transconductance of the tube and reducing its noise figure.
- An important consequence of this formula is that the overall noise figure of a radio receiver is primarily established by the noise figure of its first amplifying stage.
- An important consequence of this formula is that the overall noise figure of a radio receiver is primarily established by the noise figure of its first amplifying stage.
- This is most important in antenna systems where mismatch loss in the transmitting and receiving antenna directly contributes to the losses the system including the system noise figure.
- Amongst the many problems that can be caused by parasitic coupling are reducing reflections, worsening noise figure, causing amplifier instability, and providing undesirable feedback paths.
- Cold shields are typically used in IR optical devices for military, scientific and industrial applications to protect IR sensors from stray IR radiation ( lowering noise figures ).
- The reference is the minimum detectable signal level at the input of a receiver, which can be calculated through a knowledge of the noise figure and the input signal ADCs.
- While the hybrid phased array antenna is retained, the noise figure is slightly worse at 3.5 dB, but the receiver has four rather than three discrete channels.
- Due to their low noise figure in the RF region, and better gain, these devices are often preferred to bipolars in RF front-ends such as in TV sets.
- For this reason, the related figure of " effective noise temperature " is therefore often used instead of the noise figure for characterizing satellite-communication receivers and low-noise amplifiers.
- That will be a concern if the noise figure of the first stage plus that stage's gain ( in decibels ) is not much greater than the noise figure of the second stage.
- That will be a concern if the noise figure of the first stage plus that stage's gain ( in decibels ) is not much greater than the noise figure of the second stage.
- Then, you can " zoom in " on low-noise topologies and see some tricks to get the noise figure lower . talk ) 20 : 17, 6 September 2009 ( UTC)
- At 200 MHz, a noise figure of 2.5 ( or 4 dB ) can be reached with the ECC2000 tube in an optimized " cascode "-circuit with an optimized source impedance.
- With noise reduction typical signal-to-noise figures of 70-76 dB with Dolby C, 80-86 dB with Dolby S, and 85-90 dB with dbx could be achieved.
- According to Friis's formula, when the gain of the preamplifier is high, the SNR of the final signal is determined by the SNR of the input signal and the noise figure of the preamplifier.
- A static white noise figure climbs out of a television and begins walking through the city, encountering a homeless man and breakdancers who are puzzled by her appearance and shocked by her when they try to touch her.
- Master created The Noise Figures, about a band, and was indef'd for WP : GROUPNAME . IP editor came back to remove tags I had placed on the article, which I re-added.
- However one must check that the noise figure of the second stage is not so high ( or that the gain of the first stage is so low ) that there is SNR degradation due to the second stage anyway.
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