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# Communications, Radar and Signal Processing, IEE Proceedings F

## Filter Results

Displaying Results 1 - 14 of 14
• ### Measurements for telecommunications transmission systems

Publication Year: 1987
| PDF (180 KB)
• ### Circuit structures for high-digit-rate bit error ratio measurements

Publication Year: 1987, Page(s):434 - 438
| | PDF (596 KB)

Series-parallel signal generation and processing techniques are identified which may be used to circumvent the speed limitations of available logic devices in realising bit error ratio measurements for high-digit-rate transmission systems. New techniques are proposed which offer advantages in enabling devices to be used near their maximum operating rate while achieving, by virtue of the parallelis... View full abstract»

• ### Fast measurement of bit error rate in digital links

Publication Year: 1987, Page(s):439 - 447
Cited by:  Papers (2)
| | PDF (793 KB)

A Gaussian regression algorithm is proposed for reducing bit error rate (BER) measurement time and facilitating, by extrapolation, a bit error probability estimation as a function of the signal/noise ratio. The application of this algorithm is illustrated in two BER measurement methods using noise injection or decision threshold level shifting. The overall performance assessment of a system (error... View full abstract»

• ### Practical error probability estimation for digital radio systems in the presence of interference and noise of finite crest factor, and prediction of residual error rate

Publication Year: 1987, Page(s):448 - 453
| | PDF (627 KB)

The probability of incorrect reception of a transmitted bit under hostile propagation conditions is commonly estimated from bit error ratio measurements performed in the presence of additive white noise and interference. The paper stresses the effects of the finite crest factor of realisable noise sources on the theoretical error probability of digital radio systems. Formulas are presented for cal... View full abstract»

• ### Measurement method for eye opening estimation on digital signals

Publication Year: 1987, Page(s):454 - 458
| | PDF (632 KB)

For constructing reliable, high-grade digital transmission networks, exact failure or degradation detection in digital transmission equipment, such as regenerative repeaters, is important. A new measurement for eye opening estimation of equalised signals, called the transmission waveform deflection-type margin (TWDM) measuring method, is proposed. The principles of the method are described and the... View full abstract»

• ### Error detection in operating digital systems: influence of error distribution

Publication Year: 1987, Page(s):459 - 463
| | PDF (546 KB)

Different statistical distributions of errors (isolated and in bursts) were provoked on digital systems. Binary errors and errors estimated by coding rule violationsÂ¿ were compared for the HDB3 and 4B3T codes. In the case of the HDB3 code, 85% of isolated binary errors are detected. However, only 15% of burst errors are detected. In the case of 4B3T with an asynchronous scrambler, it may be cons... View full abstract»

• ### Assessment of timing jitter in digital telecommunications transmission systems

Publication Year: 1987, Page(s):464 - 473
Cited by:  Papers (1)
| | PDF (1461 KB)

The topics of jitter origin, accumulation and control are vitally important in digital systems and networks, and form an important part of the relevant performance specifications. The principal properties of jitter are summarised and the philosophy behind current international specifications explained. A review of measurement requirements and techniques for testing the jitter performance of digita... View full abstract»

• ### Subscriber loop noise measurements and calibration

Publication Year: 1987, Page(s):474 - 480
Cited by:  Papers (3)
| | PDF (711 KB)

An assessment of subscriber loop copper pairs for digitised data transmission includes capturing the effects of noise such as crosstalk, background noise and impulse noise on the quality of transmission. In the paper we present results of a subscriber loop noise measurement survey conducted within GTE. Calibration for impulse-noise field measurements, which estimate impulse arrival rate ¿¿ and the... View full abstract»

• ### Fast measurement of telephone channel phase characteristics. Part 1: Method description

Publication Year: 1987, Page(s):481 - 486
| | PDF (716 KB)

A procedure for measuring the frequency shift and phase jitter of telephone data channels in the voice frequency band (300-3400 Hz) is presented. Rather than processing a received signal to obtain the required measurements, the phase is extracted and processed by a phase filter¿¿. An implementation of the phase filter is described which utilises power-2 coefficients to avoid the need for multipli... View full abstract»

• ### Fast measurement of telephone channel phase characteristics. Part 2: Method analysis

Publication Year: 1987, Page(s):487 - 491
Cited by:  Papers (1)
| | PDF (442 KB)

A fast algorithm for measuring the frequency shift and phase jitter of telephone data channels which uses simple methods for extracting and processing the phase information of a received test signal was described in Part 1. A detailed analysis is now carried out for the Hilbert transformer and phase filter. The Hilbert transformer requires only one delay element, and two additions for each signal ... View full abstract»

• ### Performance of a communications system monitor

Publication Year: 1987, Page(s):492 - 498
| | PDF (870 KB)

The paper gives details of the performance and accuracy of the communications system monitor (CSM) which is used in conjunction with the Australian National Satellite System (AUSSAT). The equivalent isotropic radiated power (EIRP), frequency and carrier/noise ratio of all carriers are routinely monitored by the CSM as well as a range of baseband parameters for FM/TV and FDM/FM signals. The CSM cap... View full abstract»

• ### Integration and testing of an SS-TDMA 120 Mbit/s regenerative repeater for advanced communications satellites at K-band

Publication Year: 1987, Page(s):499 - 509
| | PDF (1193 KB)

The paper deals with a test campaign performed on a regenerative repeater with an onboard baseband switching matrix (BBSM), able to set up a satellite-switched, time-division multiple-access (SS-TDMA) system. We first address the optimisation of the transmission channel (filters, TWTA back-off etc. ) on the basis of BER measurements, and then examine some functional tests including a TDMA terminal... View full abstract»

• ### Automated microwave testing of spacecraft

Publication Year: 1987
| | PDF (1423 KB)

Preflight evaluation of the performance of the communications subsystem of communications satellites is a rigorous and demanding task. It involves exposing the spacecraft to predicted environments while interspersing performance measurements that evaluate subsystem performance. The International Business Service (IBS) version of the Intelsat VA satellite has more than 1500 different pathways that ... View full abstract»

• ### IEE Conference Publication 278

Publication Year: 1987
| PDF (71 KB)