Modulated submillimeter laser interferometer system for plasma
... pair of optically pumped lasers oscillating at slightly different frequencies. The large number of wavelengths available from such lasers provides great versatility, and systems of this type may prove applicable to a wide range of plasma experiments. The modulation scheme based on difference frequen ...
... pair of optically pumped lasers oscillating at slightly different frequencies. The large number of wavelengths available from such lasers provides great versatility, and systems of this type may prove applicable to a wide range of plasma experiments. The modulation scheme based on difference frequen ...
Communication Skills
... amplitude varies over time, and a frequency-domain view that defines the amplitude of the frequencies present in the signal over a specified interval of time. The time- and frequency-domain representations can be combined into a spectrogram, a graph that displays the changes in frequency and amplitu ...
... amplitude varies over time, and a frequency-domain view that defines the amplitude of the frequencies present in the signal over a specified interval of time. The time- and frequency-domain representations can be combined into a spectrogram, a graph that displays the changes in frequency and amplitu ...
sip02e
... １９２５ Invent of TV broadcast １９３０ Invent of imaging tube １９５１ Development of VTR １９５３ NHK started TV broadcast １９６０ Color TV broadcast in Japan １９８５ CCD Video camera for consumer ２０１１ Analog broadcast discontinue ...
... １９２５ Invent of TV broadcast １９３０ Invent of imaging tube １９５１ Development of VTR １９５３ NHK started TV broadcast １９６０ Color TV broadcast in Japan １９８５ CCD Video camera for consumer ２０１１ Analog broadcast discontinue ...
AN9789: Audio Quality Measurement Primer
... function, to account for the ear’s non-ideal perception of loudness at different frequencies, is one such example of the subjective quality of audio. In the early 1950s, transistors had just been invented. Audio amplifiers built with these devices offered better signal to noise, harmonic distortion, ...
... function, to account for the ear’s non-ideal perception of loudness at different frequencies, is one such example of the subjective quality of audio. In the early 1950s, transistors had just been invented. Audio amplifiers built with these devices offered better signal to noise, harmonic distortion, ...
Lab 1: AMPLITUDE MODULATION
... Generate an AM signal using the speech signal available from the Trunks Panel as your message. Observe the time domain waveform. The frequency spectrum will extend for about 3 kHz either side of the carrier. Since this is a stochastic (random) signal, the spectrum analyser may not give you much resp ...
... Generate an AM signal using the speech signal available from the Trunks Panel as your message. Observe the time domain waveform. The frequency spectrum will extend for about 3 kHz either side of the carrier. Since this is a stochastic (random) signal, the spectrum analyser may not give you much resp ...
Introduction to Phasors
... The display at the bottom of the scope screen is the difference in voltage between the two horizontal cursors and the difference in time between the two vertical cursors. Note that the sign convention of the display is the absolute value of the difference between the cursors. The values in parenthes ...
... The display at the bottom of the scope screen is the difference in voltage between the two horizontal cursors and the difference in time between the two vertical cursors. Note that the sign convention of the display is the absolute value of the difference between the cursors. The values in parenthes ...
The varactor resonator shown is resonant at 135 MHz. In the circuit
... (a) Will this section exhibit series resonance or parallel resonance? Draw the equivalent RLC model for this resonator. It will exhibit a series-type resonance when l=λ (similar to the short circuited λ/2 resonator). ...
... (a) Will this section exhibit series resonance or parallel resonance? Draw the equivalent RLC model for this resonator. It will exhibit a series-type resonance when l=λ (similar to the short circuited λ/2 resonator). ...
ultra bright and compact
... Canon Hongkong Co. Ltd today introduces a new projector – LV-S3 which is affordable, ultra-light (weight only 2.2 kg) and compact. It performs to project high quality image, quiet operation and portability at home. HIGH QUALITY IMAGE The LV-S3 projector has the “Genuine Canon Optics” delivers qualit ...
... Canon Hongkong Co. Ltd today introduces a new projector – LV-S3 which is affordable, ultra-light (weight only 2.2 kg) and compact. It performs to project high quality image, quiet operation and portability at home. HIGH QUALITY IMAGE The LV-S3 projector has the “Genuine Canon Optics” delivers qualit ...
Reducing the Effects of Noise in a Data Acquisition System by
... standard deviation is not quite the same as rms, which is simply the square root of E[X 2]. True rms includes the DC with the standard deviation, although for signals with 0 mean it is the same as standard deviation. We start with the assumption that we have a group of samples that are i.i.d. (indep ...
... standard deviation is not quite the same as rms, which is simply the square root of E[X 2]. True rms includes the DC with the standard deviation, although for signals with 0 mean it is the same as standard deviation. We start with the assumption that we have a group of samples that are i.i.d. (indep ...
Sampling: DAC and ADC conversion
... Main effect of quantization: introduces error in the signal This graph measures the difference between the sampled and quantized signals. The error is measured in LSBs (least significant bit, a DSP jargon) and is between the - ½ and ½ values. The quantization error looks very much like random noise. ...
... Main effect of quantization: introduces error in the signal This graph measures the difference between the sampled and quantized signals. The error is measured in LSBs (least significant bit, a DSP jargon) and is between the - ½ and ½ values. The quantization error looks very much like random noise. ...
AUDIO_TERMS
... Digital audio can be copied from one digital device to another without any loss of information, unlike analog recording, where information is lost and noise introduced with every copy. Even the best analog systems lose about 3dB of signal-to-noise ratio when a copy is recorded. After several generat ...
... Digital audio can be copied from one digital device to another without any loss of information, unlike analog recording, where information is lost and noise introduced with every copy. Even the best analog systems lose about 3dB of signal-to-noise ratio when a copy is recorded. After several generat ...
Lecture January 27
... • You can set up a bridge circuit so that the voltage is ZERO at the nominal conditions. • Consider a strain gage installed on a beam. Under no load conditions you’d like the output to read 0.0. You’d also like the sign of the output voltage to correspond to whether the gage is in tension or compres ...
... • You can set up a bridge circuit so that the voltage is ZERO at the nominal conditions. • Consider a strain gage installed on a beam. Under no load conditions you’d like the output to read 0.0. You’d also like the sign of the output voltage to correspond to whether the gage is in tension or compres ...