When using u-law compander for a message signal which has a power of 30dB, the gain...
When using u-law compander for a message signal which has a power of 30dB, the gain in the signal-to-noise ratio (SNR) is approximately around:
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When using u-law compander for a message
signal which has a power of 30dB, the gain...
Please explain part 2 thoroughly. Thanks! Consider a message signal m(t) with power of 20 mW...
Please explain part 2 thoroughly. Thanks!
Consider a message signal m(t) with power of 20 mW that is applied to an analog-to-digital converter, with dynamic range of -1 to 1 volt. a) If uniform quantization is utilized, and the minimum signal-to-quantization-noise (SQNR) is 43 dB, determine the minimum number of bits required, and the corresponding SQNR obtained with this quantizer. b) Repeat Part (a) if a u-law compander is used with u-100. c) If the power of the signal m(t)...
Given a message signal m(t) with a bandwidth of 4kHz and a Power of 1W, find the post-detection S...
Given a message signal m(t) with a bandwidth of 4kHz and a Power of 1W, find the post-detection SNR (Signal-to-noise Ratio) in [dB], of the Amplitude Modulated Signal: s(t) = 10*(1+0.5*m(t))cos(
Given a signal to a radio receiver consists of 200uV of signal power and 2 uW...
Given a signal to a radio receiver consists of 200uV of signal power and 2 uW of noise power. If the receiver contributes an additional 160 W of noise, NR, and has a power gain of 20 dB. ) Calculate the input SNR, (ii) the output SNR and (iii) the receiver's NE
5) given the following PM modulated signal equation, determine the original message equation, m(t) . s(t)=...
5) given the following PM modulated signal equation, determine the original message equation, m(t) . s(t)= 3.5cos(2π2E9t + 0.5cos(2π6000t)), Kp=0.1 (hz/v) a) m(t)=0.16cos(2π6000t) b) m(t) = 5cos(2π6E3t) c) m(t) = 5cos(2π2E9t) d) m(t) = 0.16cos(2π2.4E9t) 6) given the following message and carrier waves. Determine the AM signal equation and (DSB-LC) bandwidth: m(t) =2sin(2π10KHz*t). c(t) =3sin(2π2.4E9Hz*t) a) 5[1+0.6sin(200πt)]sin(2π10E9t), BW=10kHz b) 3[1+0.67 sin(2π10E3t)]sin(2π2.4E9t), BW=20kHz c) 3[1+0.6sin(2.4GHz*πt)]sin(2π10E3Hz*t), BW=20kHz d) 3[1+1.67 sin(2π50t)]sin(2π10E9tt), BW=10kHz 7) amplitude used in a communication path will increase both signal...
3. The quality of a received signal is often characterized by the signal-to-noise-ratio (SNR), which is...
3. The quality of a received signal is often characterized by the signal-to-noise-ratio (SNR), which is defined as SNR 10 log As you might expect from this Signal power in watts KTB definition, the unit of SNR is decibels (dB). The term in the denominator is the noise power, and it is generally specified as an effective noise temperature T multiplied by the product of Boltzmann's constant (K) and the bandwidth (B) of the signal in Hz. Generally we like...
2. 12 pts] An FM system has a modulation index β-6 aid the input signal-to-noise ratio SNR 25dB. ...
2. 12 pts] An FM system has a modulation index β-6 aid the input signal-to-noise ratio SNR 25dB. The message is a periodic square wave given in the figure below pulse width -0.2m 2 0 0 t (ms) a) What is the output SNR.? b) What is the proper value of the message bandwidth? [Justify your answer. c) What is the corresponding FM transmission bandwidth? d) If the modulation index is kept at β 6, what should be the increase...
6. The following expression is for an FM signal for transmitting the message signal m(t) rt)...
6. The following expression is for an FM signal for transmitting the message signal m(t) rt) across a channel with additive white Gaussian noise that has a power spectral density of n/2 5 x 1 0-6 W/Hz r(t) 7cos [10 t (a) (5 points) Calculate the output SNR (in dB) of the FM system. 6sin (4000Tt) (b) (5 points) The message signal can instead be transmitted using the Frequency- Shift Keying (FSK) digital system that consist of equally-likely pulses si(t)...
In a broadcasting system, the transmitted signal power is 50 kW, the attenuation of the signal...
In a broadcasting system, the transmitted signal power is 50 kW, the attenuation of the signal is 155 dB (in passing from the input to the transmitting antenna to the output of the receiving antenna), and the available mean power-spectral density of the noise in the system from all sources has a mean power spectral density level 10-18 W/Hz (as if added at the receiving antenna's output). The bandwidth of the message signal m(t) is 8 KHz. Determine the output...
Q.2 ICO2]10 Marks] The signal g(t) forms the input to the LPF circuit shown in the figure, where R l,and y(Dis the output. If the power spectral density (PSD) of the signal ge) is (a) The autoc...
Q.2 ICO2]10 Marks] The signal g(t) forms the input to the LPF circuit shown in the figure, where R l,and y(Dis the output. If the power spectral density (PSD) of the signal ge) is (a) The autocorrelation of g(t) (b) The 3-dB bandwidth of the LPF (c) The power of g(t) and y(t) (d) Based on your answers above, will it be better if the signal has more or less bandwith? (e) If a white noise of PSD No/2 is...
Question # B.4 An RF system having a RF-bandwidth of 1 MHz, has a front-end preamplifier of gain ...
WRITE LEGIBLY OR TYPE THE ANSWERS WITH EXPLANATIONS
THANKS!!!
Question # B.4 An RF system having a RF-bandwidth of 1 MHz, has a front-end preamplifier of gain (A) equal to 20 dB and a noise-figure (NF) of 4 dB. The preamplifier is followed by a mixer stage with a NF 18 dB. Suppose the signal-to-noise ratio (SNR) at the mixer output is 30 dB, find the SNR at the preamplifier input. Hint: Use Friis formula F21F (Answer hints: NF (Total)...
Please explain part 2 thoroughly. Thanks!
Consider a message signal m(t) with power of 20 mW that is applied to an analog-to-digital converter, with dynamic range of -1 to 1 volt. a) If uniform quantization is utilized, and the minimum signal-to-quantization-noise (SQNR) is 43 dB, determine the minimum number of bits required, and the corresponding SQNR obtained with this quantizer. b) Repeat Part (a) if a u-law compander is used with u-100. c) If the power of the signal m(t)...
Given a signal to a radio receiver consists of 200uV of signal power and 2 uW of noise power. If the receiver contributes an additional 160 W of noise, NR, and has a power gain of 20 dB. ) Calculate the input SNR, (ii) the output SNR and (iii) the receiver's NE
3. The quality of a received signal is often characterized by the signal-to-noise-ratio (SNR), which is defined as SNR 10 log As you might expect from this Signal power in watts KTB definition, the unit of SNR is decibels (dB). The term in the denominator is the noise power, and it is generally specified as an effective noise temperature T multiplied by the product of Boltzmann's constant (K) and the bandwidth (B) of the signal in Hz. Generally we like...
2. 12 pts] An FM system has a modulation index β-6 aid the input signal-to-noise ratio SNR 25dB. The message is a periodic square wave given in the figure below pulse width -0.2m 2 0 0 t (ms) a) What is the output SNR.? b) What is the proper value of the message bandwidth? [Justify your answer. c) What is the corresponding FM transmission bandwidth? d) If the modulation index is kept at β 6, what should be the increase...
6. The following expression is for an FM signal for transmitting the message signal m(t) rt) across a channel with additive white Gaussian noise that has a power spectral density of n/2 5 x 1 0-6 W/Hz r(t) 7cos [10 t (a) (5 points) Calculate the output SNR (in dB) of the FM system. 6sin (4000Tt) (b) (5 points) The message signal can instead be transmitted using the Frequency- Shift Keying (FSK) digital system that consist of equally-likely pulses si(t)...
In a broadcasting system, the transmitted signal power is 50 kW, the attenuation of the signal is 155 dB (in passing from the input to the transmitting antenna to the output of the receiving antenna), and the available mean power-spectral density of the noise in the system from all sources has a mean power spectral density level 10-18 W/Hz (as if added at the receiving antenna's output). The bandwidth of the message signal m(t) is 8 KHz. Determine the output...
Q.2 ICO2]10 Marks] The signal g(t) forms the input to the LPF circuit shown in the figure, where R l,and y(Dis the output. If the power spectral density (PSD) of the signal ge) is (a) The autocorrelation of g(t) (b) The 3-dB bandwidth of the LPF (c) The power of g(t) and y(t) (d) Based on your answers above, will it be better if the signal has more or less bandwith? (e) If a white noise of PSD No/2 is...
WRITE LEGIBLY OR TYPE THE ANSWERS WITH EXPLANATIONS
THANKS!!!
Question # B.4 An RF system having a RF-bandwidth of 1 MHz, has a front-end preamplifier of gain (A) equal to 20 dB and a noise-figure (NF) of 4 dB. The preamplifier is followed by a mixer stage with a NF 18 dB. Suppose the signal-to-noise ratio (SNR) at the mixer output is 30 dB, find the SNR at the preamplifier input. Hint: Use Friis formula F21F (Answer hints: NF (Total)...
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