title: Mixed pixel return separation for a full-field ranger

authors: Godbaz, John Peter

subjects: lidar

abstract: Full-field amplitude modulated continuous wave range imagers commonly suffer from the mixed pixel problem. This problem is caused by the integration of light from multiple sources by a single pixel, particularly around the edges of objects, resulting in erroneous range measurements. In this paper we present a method for identifying the intensity and range of multiple return values within each pixel, using the harmonic content of the heterodyne beat waveform. Systems capable of measurements at less than 90 degree phase shifts can apply these methods. Our paper builds on previous simulation based work and uses real range data. The method involves the application of the Levy-Fullagar algorithm and the use of the cyclic nature of the beat waveform to extract the mean noise power. We show that this method enables the separation of multiple range sources and also decreases overall ranging error by 30% in the single return case. Error in the two return case was found to increase substantially as relative intensity of the return decreased.

text: Mixed pixel return separation for a full-field ranger Full-field amplitude modulated continuous wave range imagers commonly suffer from the mixed pixel problem. This problem is caused by the integration of light from multiple sources by a single pixel, particularly around the edges of objects, resulting in erroneous range measurements. In this paper we present a method for identifying the intensity and range of multiple return values within each pixel, using the harmonic content of the heterodyne beat waveform. Systems capable of measurements at less than 90 degree phase shifts can apply these methods. Our paper builds on previous simulation based work and uses real range data. The method involves the application of the Levy-Fullagar algorithm and the use of the cyclic nature of the beat waveform to extract the mean noise power. We show that this method enables the separation of multiple range sources and also decreases overall ranging error by 30% in the single return case. Error in the two return case was found to increase substantially as relative intensity of the return decreased.

year: 2008

title: Timor leste collaborative project: a short report

authors: Amaral, Marcos Antonio

subjects: Universidade Nacional Timor Lorosa'e

abstract: This report discusses findings from a small-scale scoping study, which is part of a larger curriculum project—a collaborative venture between staff from the Universidade Nacional Timor Lorosa'e (UNTL) and a New Zealand university.
The aim of the wider project is to develop a context-sensitive English language curriculum for students at UNTL who are undergoing pre-service training to be teachers of English as a foreign language in local secondary schools. (Details of the institutional and linguistic context are provided in the appendix.) According to Norton (2000), investment by learners is a key factor in the successful implementation of a new curriculum: "if learners invest in a second language, they do so with the understanding that they will acquire a wider range of symbolic and material resources, which will increase their value in the social world" (Norton, 2000, pp. 165-166). Thus, when designing the curriculum, it is important to ensure that the students will not only understand how to use the specific learning tasks but that it also expands their repertoire of skills and knowledge for application in their subsequent professional and social lives.
The report begins by outlining the history and objectives of the project before explaining the specific research questions posed for the scoping study. The means of collecting data will be outlined and examples of the participants' attitudes will be presented based on open-ended questionnaire responses. These findings will be discussed in terms of how they might lead to the design of a curriculum which is internationally-framed and context-sensitive in terms both of its content and implementation. The report will conclude with the further steps that are being taken to move the project to its next phase.

text: Timor leste collaborative project: a short report This report discusses findings from a small-scale scoping study, which is part of a larger curriculum project—a collaborative venture between staff from the Universidade Nacional Timor Lorosa'e (UNTL) and a New Zealand university.
The aim of the wider project is to develop a context-sensitive English language curriculum for students at UNTL who are undergoing pre-service training to be teachers of English as a foreign language in local secondary schools. (Details of the institutional and linguistic context are provided in the appendix.) According to Norton (2000), investment by learners is a key factor in the successful implementation of a new curriculum: "if learners invest in a second language, they do so with the understanding that they will acquire a wider range of symbolic and material resources, which will increase their value in the social world" (Norton, 2000, pp. 165-166). Thus, when designing the curriculum, it is important to ensure that the students will not only understand how to use the specific learning tasks but that it also expands their repertoire of skills and knowledge for application in their subsequent professional and social lives.
The report begins by outlining the history and objectives of the project before explaining the specific research questions posed for the scoping study. The means of collecting data will be outlined and examples of the participants' attitudes will be presented based on open-ended questionnaire responses. These findings will be discussed in terms of how they might lead to the design of a curriculum which is internationally-framed and context-sensitive in terms both of its content and implementation. The report will conclude with the further steps that are being taken to move the project to its next phase.

year: 2009

title: Ngaa tongikura o te Kiingitanga - He tongi takapou nui, he kura takapou roa

authors: Paki, Nga wai hono i te po

subjects: Tongikura

abstract: Mai anoo, mai anoo i te waa o ngoo taatou tuupuna, ko te iere o te reo, ko te tangi o te kupu te waka kawe i ngaa whakaaro me ngaa kare aa-roto o oo taatou tuupuna. Inaa hoki raa te hoohonu o te whakaaro me te huhua o ngaa kura huna kua rarau ki ngaa kupu tuku iho o oo taatou tuupuna. I roto i a maatou, o Tainui waka, o Waikato iwi, o te Kiingitanga, ko ngaa tongikura te ritenga.

Kei teenei tuhinga te whakamaaramatanga, te whakamahukitanga o teenei taonga te tongikura. Ahakoa, inaa raa ngaa tini tongikura o te Kiingitanga kua tongikuratia ko taa teenei tuhinga whakapae he tuuhura i ngaa kura huna e whakapaetia nei, he oranga kei roto i ngaa tongikura hei painga moo te tangata. Noo te orokohanganga mai o te Kiingitanga tatuu iho raa ki teenei rangi tonu kei ngeenei tongikura ngaa kupu taurangi, ngaa tohutohu nui aa te raangai upoko ariki o te Kiingitanga ki ngaa iwi. I roto i te whakapaparanga o te Kiingitanga kua kitea taatou i te nui o te whakamahinga o ngaa tongikura hei aarahi, hei takitaki i a taatou a Tainui waka, i a Tainui tangata.

Kua haoria ake raa ko ngeetehi kohinga tongikura hei whewheratanga maaku i roto i teenei tuhinga e kite ai taatou i te mauri ora o ngaa tongikura ki roto i te iwi o Waikato, ki roto anoo hoki i ngaa iwi o te Kiingitanga. E haangai mai ana ngeenei tongikura ki te ora o te iwi, e purutia ana hoki hei kura waananga maa ngaa reanga whakatupuranga o te inamata, ki te anamata. Tiikina ake raa ko te kupu wairua, kia tuu te tongikura, ko te aakinga te mea nui, tau ki runga ki teenei tuhikura. Haere, tomokia mai te whare tongikura, he tongi takapou kura, he kura takapou roa.

text: Ngaa tongikura o te Kiingitanga - He tongi takapou nui, he kura takapou roa Mai anoo, mai anoo i te waa o ngoo taatou tuupuna, ko te iere o te reo, ko te tangi o te kupu te waka kawe i ngaa whakaaro me ngaa kare aa-roto o oo taatou tuupuna. Inaa hoki raa te hoohonu o te whakaaro me te huhua o ngaa kura huna kua rarau ki ngaa kupu tuku iho o oo taatou tuupuna. I roto i a maatou, o Tainui waka, o Waikato iwi, o te Kiingitanga, ko ngaa tongikura te ritenga.

Kei teenei tuhinga te whakamaaramatanga, te whakamahukitanga o teenei taonga te tongikura. Ahakoa, inaa raa ngaa tini tongikura o te Kiingitanga kua tongikuratia ko taa teenei tuhinga whakapae he tuuhura i ngaa kura huna e whakapaetia nei, he oranga kei roto i ngaa tongikura hei painga moo te tangata. Noo te orokohanganga mai o te Kiingitanga tatuu iho raa ki teenei rangi tonu kei ngeenei tongikura ngaa kupu taurangi, ngaa tohutohu nui aa te raangai upoko ariki o te Kiingitanga ki ngaa iwi. I roto i te whakapaparanga o te Kiingitanga kua kitea taatou i te nui o te whakamahinga o ngaa tongikura hei aarahi, hei takitaki i a taatou a Tainui waka, i a Tainui tangata.

Kua haoria ake raa ko ngeetehi kohinga tongikura hei whewheratanga maaku i roto i teenei tuhinga e kite ai taatou i te mauri ora o ngaa tongikura ki roto i te iwi o Waikato, ki roto anoo hoki i ngaa iwi o te Kiingitanga. E haangai mai ana ngeenei tongikura ki te ora o te iwi, e purutia ana hoki hei kura waananga maa ngaa reanga whakatupuranga o te inamata, ki te anamata. Tiikina ake raa ko te kupu wairua, kia tuu te tongikura, ko te aakinga te mea nui, tau ki runga ki teenei tuhikura. Haere, tomokia mai te whare tongikura, he tongi takapou kura, he kura takapou roa.

year: 2022