 Home
 Products
 Integration
 Tutorial
 Barcode FAQ
 Purchase
 Company
ssrs 2016 barcode Solution in Software
Solution Decode QR Code In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Paint Denso QR Bar Code In None Using Barcode generator for Software Control to generate, create QR Code image in Software applications. From Eq. (9.17): g 5 10 From Eq. (9.19): L 5 10
Recognize QR In None Using Barcode reader for Software Control to read, scan read, scan image in Software applications. QR Printer In C#.NET Using Barcode drawer for VS .NET Control to generate, create QR image in Visual Studio .NET applications. s2114 log nd gdB
QRCode Generation In .NET Using Barcode printer for ASP.NET Control to generate, create QR image in ASP.NET applications. QRCode Creation In VS .NET Using Barcode encoder for .NET framework Control to generate, create QRCode image in .NET framework applications. 5 4.77 QR Drawer In VB.NET Using Barcode creator for .NET Control to generate, create QR Code JIS X 0510 image in .NET applications. EAN 13 Creator In None Using Barcode encoder for Software Control to generate, create EAN / UCC  13 image in Software applications. 5 1.683 Creating GS1 128 In None Using Barcode generator for Software Control to generate, create UCC128 image in Software applications. Encoding Bar Code In None Using Barcode encoder for Software Control to generate, create bar code image in Software applications. From Table 9.1, for 24 channels Frms F g#L# Make Code 39 Full ASCII In None Using Barcode maker for Software Control to generate, create Code 3 of 9 image in Software applications. Creating Data Matrix In None Using Barcode encoder for Software Control to generate, create Data Matrix 2d barcode image in Software applications. 35 kHz, and using Eq. (9.20), Frms > 281 kHz
Encoding MSI Plessey In None Using Barcode drawer for Software Control to generate, create MSI Plessey image in Software applications. Code 128 Drawer In VB.NET Using Barcode generation for .NET framework Control to generate, create ANSI/AIM Code 128 image in Visual Studio .NET applications. Assuming that the baseband spectrum is as shown in Fig. 9.4a, the top frequency is fm and Carson s rule gives BIF 2s F f md 778 kHz 108 kHz Paint EAN13 In Visual C# Using Barcode drawer for VS .NET Control to generate, create EAN13 image in VS .NET applications. Bar Code Decoder In .NET Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications. Nine
Bar Code Drawer In .NET Framework Using Barcode printer for ASP.NET Control to generate, create barcode image in ASP.NET applications. Make UPC Code In .NET Using Barcode encoder for Reporting Service Control to generate, create UPCA image in Reporting Service applications. From Eq. (9.16): Encoding Bar Code In None Using Barcode encoder for Word Control to generate, create bar code image in Office Word applications. Bar Code Generator In Visual Studio .NET Using Barcode creation for .NET Control to generate, create barcode image in Visual Studio .NET applications. 777.8 3.1 35 108 > 26.36 From Eq. (9.15): c S N d c C N d 10 logGP 14.21 4 [P] 2.5 [W] 45.7 dB
9.6.8 Signaltonoise ratio for TV/FM
Television performance is measured in terms of the postdetector video signaltonoise ratio, defined as (CCITT Recommendation 5672, 1986) a S b N V peaktopeak video voltage rms noise voltage (9.21) Because peaktopeak video voltage is used, 2 F replaces F in Eq. (9.8). Also, since power is proportional to voltage squared, a S b N v C BN(2 F) N W3
(9.22) where W is the highest video frequency. With the deviation ratio D F/W, and the processing gain for TV denoted as GPV, GPV sS/Nd2 V C/N 12D2sD 1d (9.23) Some workers include an implementation margin to allow for nonideal performance of filters and demodulators (Bischof et al., 1981). With the implementation margin in decibels denoted by [IMP], Eq. (9.15) becomes ca S b d N V C d N
[GPV] [IMP] (9.24) 10 log10X .
Recall that the square brackets denote decibels, that is, [X] This is illustrated in the following example. Analog Signals
Example 9.6 A satellite TV link is designed to provide a video signaltonoise ratio of 62 dB. The peak deviation is 9 MHz, and the highest video baseband frequency is 4.2 MHz. Calculate the carriertonoise ratio required at the input to the FM detector, given that the combined noise weighting, emphasis improvement, and implementation margin is 11.8 dB. Solution
9 4.2 Equation (9.23) gives: GPV 12 2.1432 s2.143 1d 173.2
Therefore, [GPV] 10 log 173.2 22.4 dB
Since the required signaltonoise ratio is 62 dB, Eq. (9.24) can be written as 62 c C N d 22.4 11.8
from which [C/N] 27.8 dB.
9.7 Problems and Exercises
9.1. State the frequency limits generally accepted for telephone transmission of speech and typical signal levels encountered in the telephone network. 9.2. Show that when two sinusoids of different frequencies are multiplied together, the resultant product contains sinusoids at the sum and difference frequencies only. Hence show how a multiplier circuit may be used to produce a DSBSC signal. 9.3. Explain how a DSBSC signal differs from a conventional amplitude modulated signal such as used in the mediumwave (broadcast) radio band. Describe one method by which an SSB signal may be obtained from a DSBSC signal. 9.4. Explain what is meant by FDM telephony. Sketch the frequency plans for the CCITT designations of group, supergroup, basic mastergroup, and super mastergroup. 9.5. With the aid of a block schematic, show how 12 VF channels could be frequencydivision multiplexed. Nine
9.6. Explain how a 252VFchannel group is formed for satellite transmission. 9.7. Describe the essential features of the video signal used in the NTSC color TV scheme. How is the system made compatible with monochrome reception 9.8. Explain how the sound information is added to the video information in a color TV transmission. 9.9. For the matrix network M shown in Fig. 9.7, derive the equations for the Y, Q, and I signals in terms of the input signals R, G, and B. 9.10. Explain what is meant by frequency modulation. A 70MHz carrier is frequency modulated by a 1kHz tone of 5V peak amplitude. The frequency deviation constant is 15 kHz/V. Write down the expression for instantaneous frequency. 9.11. An anglemodulated wave may be written as sinq(t), where the argument q(t) is a function of the modulating signal. Given that the instantaneous angular frequency is wi dq(t)/dt, derive the expression for the FM carrier in Prob. 9.10. 9.12. (a) Explain what is meant by phase modulation. (b) A 70MHz carrier is phase modulated by a 1kHz tone of 5V peak amplitude. The phase modulation constant is 0.1 rad/V. Write down the expression for the argument q(t) of the modulated wave. 9.13. Determine the equivalent peak frequency deviation for the phasemodulated signal of Prob. 9.12. 9.14. Show that when a carrier is phase modulated with a sinusoid, the equivalent peak frequency deviation is proportional to the modulating frequency. Explain the significance of this on the output of an FM receiver used to receive the PM wave. 9.15. In the early days of FM it was thought that the bandwidth could be limited to twice the peak deviation irrespective of the modulating frequency. Explain the fallacy behind this reasoning. 9.16. A 10kHz tone is used to frequency modulate a carrier, the peak deviation being 75 kHz. Use Carson s rule to estimate the bandwidth required. 9.17. A 70MHz carrier is frequency modulated by a 1kHz tone of 5V peak amplitude. The frequency deviation constant is 15 kHz/V. Use Carson s rule to estimate the bandwidth required. 9.18. A 70MHz carrier is phase modulated by a 1kHz tone of 5V peak amplitude. The phase modulation constant is 0.1 rad/V. Find the equivalent peak deviation and, hence, use Carson s rule to estimate the bandwidth required for the PM signal.

