Lab DSP Essay Example | Topics and Well Written Essays - 1000 words

Lab DSP - Essay Example Table 1 indicates that expected values are the same with program’s values. Rectangular window function was utilized to design low-pass filters in MATLAB with window length M=2, 45, 65 and ω=0.2 as cut-off frequency. The graphs for impulse response, pole-zero, and magnitude function (linear as well as dB) were drawn. In the first experiment, three LPFs of varying lengths, length M = 25, 45, 65 as well as a 0.2π cut-off frequency were designed. Many observations were made during filter design process. The rectangular function’s main lobe width is 4π/M. The main lobe’s width narrows as M increases, affecting transition width and increasing its gradient. Increasing M reduces a large transition width, which is an unwanted effect. The area below the side lobes remain unchanged with signals retaining the ripples. High side lobe as well as stopband attenuation of -13 db and -21 dB respectively makes the rectangular function undesirable to use. Using a different window function with lower side lobes as well as stop band attenuations is the only way to overcome. Poles-zeros plot significantly affect response frequency when ascertaining the poles/zeros position in the unit circle, thus remain very crucial for the experiment. Unit circle zeros make response to move towards zero, which are components of stopband range. Zeros that are components of passband range produce ripples during passband frequency, thus impact the signal, which consequently affects filter accuracy. Zeros ranging 0-π are crucial because those that are outside do not have impact on the filter response. The poles at zero only have impact on the height of the passband. All window functions, including rectangular, hamming and Blackman, were used in MATLAB to design low-pass filters where length, M was 25 and cut-off frequency was ω=0.2. The graphs for impulse response,

W3a2-modernism Assignment Example | Topics and Well Written Essays - 750 words

W3a2-modernism - Assignment Example Statement of the house was written and designed by Walter burley griffin around 1909-1910 during the period when he was under the control of his earlier employer, Frank Lloyd Wright the structure was eventually erected in the year 1910. The designer had suggested application of cross-shaped plan that had low flanking wings and additional broad gables which were similar to preceding Wrights design entailed in design of the Ward In contrast, the prairie school is a design of the late 19th century which was constructed in Chicago city, Illinois. The design became very notable in the region considering the distinction of the building architecture. The influence of the architecture spread geographically far wide into the north and central Europe and far into Australia (Mulfinger, Dale & Eileen, 90). The design of the building exposed an excellent combination and integration of the ambience landscape , hipped roofs , broad eaves horizontals lines horizontal assembling of the windows, skillful craftsmanship, solid construction and sparing application of the decorations. The eminent horizontal lines facilitated the unison of the structure with the existent local prairie landscape notable in the Midwest. The design of the building brought up several ambitious architectures who shared a desire to alter customized architecture and bring in new transformational models that would be reflective of new mindset. The youn g designers included Frank Lloyd Wright and Louis H. Sullivan and the term prairie became associated with the new blood of architect involved in this project (Gelfand, Lisa & Eric,