title: Jitter measurement in digital signals by using software defined radio technology

authors: Anthonys, Gehan

abstract: Here, we propose a method using software defined radio (SDR) technology to measure periodic and random jitter in a digital signal. Conventional methods to measure jitter required expensive measurement equipment. We use a cheap (less than US $40) SDR USB dongle to expose random and periodic jitter in the amplitude modulated light source of a range camera. By using Fourier analysis we generate an ideal reference signal to enable to extract jitter at the zero crossings of the signal under test. We measure jitter with SDR receiver and more conventionally a real-time digital oscilloscope. From the SDR receiver, we find the periodic jitter at low frequency and compare to the oscilloscope results. We demonstrate that periodic and random jitter can be detected on a RF signal with consumer priced products provided that the jitter frequency less within the bandwidth of the receiver.

text: Jitter measurement in digital signals by using software defined radio technology Here, we propose a method using software defined radio (SDR) technology to measure periodic and random jitter in a digital signal. Conventional methods to measure jitter required expensive measurement equipment. We use a cheap (less than US $40) SDR USB dongle to expose random and periodic jitter in the amplitude modulated light source of a range camera. By using Fourier analysis we generate an ideal reference signal to enable to extract jitter at the zero crossings of the signal under test. We measure jitter with SDR receiver and more conventionally a real-time digital oscilloscope. From the SDR receiver, we find the periodic jitter at low frequency and compare to the oscilloscope results. We demonstrate that periodic and random jitter can be detected on a RF signal with consumer priced products provided that the jitter frequency less within the bandwidth of the receiver.

year: 2019

title: From the playful to the profound: What metaphors tell us about gifted children

authors: Fraser, Deborah

abstract: Although some metaphors have lost their novelty through overuse, the unexpected quality of other metaphors appeal to creatively gifted children given their proctivity for language and imagination. The unexpected connections that comprise metaphor manifest the creative process and can give rise to innovative expressions and concepts. Creatively gifted children have an extraordinary facility with metaphor, using these expressions in ways that reveal advanced metalinguistic ability. In addition, the metaphors they create reflect a wealth of ability from profound emotional and spiritual dimensions to playful and humorous insights into the human condition. A range of metaphors composed by children are presented and discussed in terms of what they indicate about the personal worlds, special talents, and emotional insights that are often typical of the gifted. Moreover, some of these metaphors appear to play a cathartic role for their authors whereas others seem to provide an engaging vehicle for creatively gifted children's delight in the world of language and ideas. The approach to creative writing described in this article also has the potential to assist with the identification of those with linguistic talent.

text: From the playful to the profound: What metaphors tell us about gifted children Although some metaphors have lost their novelty through overuse, the unexpected quality of other metaphors appeal to creatively gifted children given their proctivity for language and imagination. The unexpected connections that comprise metaphor manifest the creative process and can give rise to innovative expressions and concepts. Creatively gifted children have an extraordinary facility with metaphor, using these expressions in ways that reveal advanced metalinguistic ability. In addition, the metaphors they create reflect a wealth of ability from profound emotional and spiritual dimensions to playful and humorous insights into the human condition. A range of metaphors composed by children are presented and discussed in terms of what they indicate about the personal worlds, special talents, and emotional insights that are often typical of the gifted. Moreover, some of these metaphors appear to play a cathartic role for their authors whereas others seem to provide an engaging vehicle for creatively gifted children's delight in the world of language and ideas. The approach to creative writing described in this article also has the potential to assist with the identification of those with linguistic talent.

year: 2003

title: Moehewa: Death, lifestyle & sexuality in the Maori World

authors: Nikora, Linda Waimarie

abstract: Customary death ritual and traditional practice have continued for the Māori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Māori and any one, or a combination, of the following: a queen, takatāpui,[1] butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Māori visual narratives record such liaisons and erotic experience as joyously normal (Te Awekotuku, 2005). And yet some people choose to remain in the closet. In this paper, we present three case studies, and invite the reader to reflect with us on mourning rituals or tangi – Māori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. In this way, we open up a space for dialogue about such matters in our intimate and kin communities.

text: Moehewa: Death, lifestyle & sexuality in the Maori World Customary death ritual and traditional practice have continued for the Māori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Māori and any one, or a combination, of the following: a queen, takatāpui,[1] butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Māori visual narratives record such liaisons and erotic experience as joyously normal (Te Awekotuku, 2005). And yet some people choose to remain in the closet. In this paper, we present three case studies, and invite the reader to reflect with us on mourning rituals or tangi – Māori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. In this way, we open up a space for dialogue about such matters in our intimate and kin communities.

year: 2016