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Elements and Performance Criteria

  1. Apply DSP design criteria to telecommunications system
  2. Determine linear time invariant (LTI) system properties
  3. Analyse digital telecommunication signals processing
  4. Analyse time and frequency forms of signals by applying simulation of signal processing

Required Skills

Required skills

analytical skills to evaluate a range of complex technical data

communication skills to work effectively within group

information technology skills for word processing using statistical data and desktop research

literacy skills to

read and interpret technical documentation

write reports including recommendations

numeracy skills to perform mathematical calculations

research skills to

gather and record data from measurements

gather data observe and analyse signal issues

technical skills to

apply simulation software

operate telecommunication test equipment

use telecommunications management networks

Required knowledge

digital communications systems

Fourier transforms

LTI

modulation methods amplitude AM frequency FM and phase PM and digital formats

organisational policy and procedures

responses to noncompliance

radio frequency RF awareness

workplace and industry environment

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the ability to

apply DSP criteria to a telecommunications system

evaluate LTI system properties

analyse DSP time and frequency forms of signals by applying signal processing

Context of and specific resources for assessment

Assessment must ensure

a telecommunications operations site

digital communication systems simulation software and telecommunications test equipment currently used in industry

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge The following examples are appropriate for this unit

oral or written questioning to assess required knowledge

direct observation of the candidate carrying out analysis and fault solution development within a digital communication system

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector workplace and job role is recommended for example

ICTTENA Produce engineering solutions using numerical computations and simulation

ICTTEN8197A Produce engineering solutions using numerical computations and simulation.

Aboriginal people and other people from a nonEnglish speaking background may have second language issues

Access must be provided to appropriate learning and assessment support when required

Assessment processes and techniques must be culturally appropriate and appropriate to the oral communication skill level and language and literacy capacity of the candidate and the work being performed

In all cases where practical assessment is used it will be combined with targeted questioning to assess required knowledge Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency

Where applicable physical resources should include equipment modified for people with special needs


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

DSP criteria include:

anti-alias and reconstructive filters

distortion

Nyquist sampling rate

quantisation error and noise

sampling theory

signal conditioning

signal converters:

ADC

DAC

Z-domain representation and transforms.

Frequency domain analysis may include:

discrete Fourier transform (DFT)

fast Fourier transform (FFT)

modern spectral analysis

power spectra

signals:

aperiodic

periodic

random

time and frequency representation.

DSP baseband communications signals may include:

bandpass sigma delta systems

data equalisation

error control and coding

matched filtering

modulation:

AM

FM

PM

pulse shaping

quaternary phase shift keying (QPSK) - quadrature amplitude modulation (QAM) digital communications

root raised cosine

signalling:

amplitude shift keying (ASK)

frequency shift keying (FSK)

phase shift keying (PSK).

Digital filtering refers to:

comb and ARMA filters

digital filter design parameters and methods

FIR and IIR Filters

poles and zeroes and z-domain.

Telecommunication entities may include:

discrete-time Fourier transform (DTFT) based filter of given design parameters

DTFT operation

generation of dual tone multi frequency signals

telephone touch tone system.

Simulation software functions may include:

conv

filter

isim.

Adaptive DSP algorithms include:

acoustic echo control and noise control

channel equalisation

echo control for feedback suppression

inverse system identification

Kalman

least squares

least mean squares

QR algorithms

recursive least squares (RLS).

Telecommunication system may include:

AM with carrier

FM

PSK

single-sideband AM.